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Tytuł:
Industry 4.0 : are we ready?
Przemysł 4.0 : czy jesteśmy przygotowani?
Autorzy:
Ślusarczyk, B.
Powiązania:
https://bibliotekanauki.pl/articles/406054.pdf
Data publikacji:
2018
Wydawca:
Politechnika Częstochowska
Tematy:
Industry 4.0
4th industrial revolution
4IR
new technologies
Przemysł 4.0
Czwarta Rewolucja Przemysłowa
nowe technologie
Opis:
The concept of Industry 4.0 is a new reality of the modern economy, because innovation and technological development play an important role in each organization. Industry 4.0 significantly changes products and production systems concerning the design, processes, operations and services. Certainly, the implementation of this concept has further consequences for management and future jobs through creating new business models. The objective of the present paper is to present the attitude of entrepreneurs to Industry 4.0, to indicate readiness for implementing the elements of the concept and to point out the barriers, which may possibly threaten enterprises in the effective achievement of a higher technological and organizational level. The research conducted in the paper is based on secondary data, obtained from many professional reports and studies, carried out by State institutions, consortia or enterprises. The international analyses coming from those documents show a significant interest in challenges imposed on companies by the Fourth Industrial Revolution. The majority of the respondents recognize the concept of Industry 4.0 as a great opportunity for development and improvement in competitiveness, although the state of preparations for its implementation varies widely depending on country, sector, or even an individual company.
Koncepcja Industry 4.0 to nowa rzeczywistość współczesnej gospodarki, gdyż postępy w transformacji cyfrowej i rosnące wzajemne połączenia będą stanowić nowe wyzwania dla wielu organizacji. Industry 4.0 znacząco zmieni produkty i systemy produkcyjne dotyczące projektowania, procesów, operacji i usług. Z pewnością, wdrożenie tej koncepcji będzie miało dalsze konsekwencje dla zarządzania i przyszłych miejsc pracy poprzez tworzenie nowych modeli biznesowych. Celem niniejszego artykułu jest prezentacja nastawienia przedsiębiorców do Industry 4.0, wskazanie gotowości na wdrożenie elementów charakterystycznych dla tej koncepcji oraz wskazanie barier, które potencjalnie mogą zagrozić przedsiębiorstwom w efektywnym osiągnięciu wyższego poziomu technologiczno-organizacyjnego. Przeprowadzone w niniejszym artykule badania opierają się na danych wtórnych, pozyskanych z wielu profesjonalnych raportów i opracowań, realizowanych przez instytucje państwowe, konsorcja czy przedsiębiorstwa. Pochodzące z wielu raportów międzynarodowe analizy, wskazują na znaczące zainteresowanie wyzwaniami, które stawia przed firmami Czwarta Rewolucja Przemysłowa. Większość badanych widzi w koncepcji Industry 4.0 ogromną szansę na rozwój i poprawę konkurencyjności, chociaż stan przygotowania do jej wdrożenia jest bardzo zróżnicowany w zależności od kraju, branży, czy nawet indywidualnego przedsiębiorstwa.
Źródło:
Polish Journal of Management Studies; 2018, 17, 1; 232-248
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectral studies and insect antifeedant activities of some 4-substituted 1-naphthacyl bromide and its esters
Autorzy:
Thirunarayanan, Ganesamoorthy
Powiązania:
https://bibliotekanauki.pl/articles/763926.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
4-substituted 1-naphthacylbromides, 4-substituted 1-naphthacylbenzoates, IR& NMR spectra, Correlation analysis, Insect antifeedant activities
Opis:
About nine 4-substituted 1-naphthacyl bromides and its esters have been synthesized by greener synthetic method using fly-ash catalyzed water mediated reaction.  These acyl bromides and esters have been characterized by their physical constants, Mass, IR and NMR spectral data.  These carbonyl frequencies(cm-1) of existed rotomers of these compounds have been assigned and correlated with Hammett substituent constants, F, R and Swain-Lupton’s parameters.  The insect antifeedant activities of the synthesized acyl bromide and esters have been evaluated using 4th instar larvae Achoea Janatha L.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2016, 71, 2
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upskilling and reskilling requirement in logistics and supply chain industry for the fourth industrial revolution
Autorzy:
Wahab, Siti Norida
Rajendran, Salini Devi
Yeap, Swee Pin
Powiązania:
https://bibliotekanauki.pl/articles/1835477.pdf
Data publikacji:
2021
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
upskilling
reskilling
IR 4.0
logistics management
supply chain management
podnoszenie umiejętności
przekwalifikowanie
zarządzanie logistyką
zarządzanie łańcuchem dostaw
Opis:
For years, the logistics and supply chain industries have been optimized to reduce cost, minimize the carried inventories and increase the efficiency of assets utilization. Besides that, the impact of industrial revolution 4.0 (IR 4.0) has queried for more new skills for a more demanding job scope. In particular, many traditional operation methods have been gradually replaced by automation-based operation. Hence the requirement for upskilling and reskilling became appealing. The present paper discusses the role of upskilling and reskilling during IR 4.0, a method to implement upskilling and reskilling training, the role of the Human Resource Development Fund (HRDF), as well as the challenges faced during the implementation of reskilling and upskilling in the logistics industries. Methods: Inductive reasoning is employed in the paper, which is backed up by a study of related scholarly journal papers to uncover the Malaysian upskilling and reskilling requirement in the logistics industry during IR 4.0from both intrinsic and extrinsic lenses. Results: The paper claims that changing the workplace and workforce, increase employees competitiveness and costeffectiveness in long term is the main importance of upskilling and reskilling. Nevertheless, firms cannot disregard the needs for technical and human skills as well as the HRDF initiatives. These include the creation of a digital culture with the right training and development to uphold the local experts. Conclusions: Despite the paper's qualitative approach, the findings will provide a clearer understanding of the upskilling and reskilling requirements for IR 4.0, as well as a foundation for future study. This paper proposes an alternative strategy to diversify the economy and enter IR 4.0 for a developing country that is dependent on a non-renewable source.
Źródło:
LogForum; 2021, 17, 3; 399-410
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling the internal forces of SMEs digital adaptation strategy towards industry revolution 4.0
Modelowanie wewnętrznych sił MSP strategia adaptacji cyfrowej w kierunku przemysłu rewolucji 4.0
Autorzy:
Rusly, Fariza Hanim
Talib, Yurita Yakimin Abdul
Hussin, Muhammad Rosni Amir
Mutalib, Hafizah Abd
Powiązania:
https://bibliotekanauki.pl/articles/2147289.pdf
Data publikacji:
2021
Wydawca:
Politechnika Częstochowska
Tematy:
adaptacja do zmiany
zarządzanie zmianą
adaptacja cyfrowa
cyfryzacja
strategia cyfrowa
IR 4.0
MŚP
change adaptation
change management
digital adaptation
digitalisation
digital strategy
SME
Opis:
This paper explores internal forces that formed the digital adaptation strategy for SMEs embarking on the digital transformation of Industrial Revolution 4.0 (IR4.0). A qualitative case study design was adopted involving Small and Medium-sized Enterprises (SMEs) from the manufacturing and service sectors in Malaysia. Data was gathered through semi-structured interviews and supported by the resources from the firms’ website. Adopting the Planned Process Change Model and Technology Adaptation Process Model as new theoretical lenses in the digital adaptation study, findings from the multiple case studies using thematic analysis revealed four dimensions of internal forces driving SMEs’ digital adaptation: business strategy, value creation, digital leadership and digital talent. Findings contribute to the theoretical development of the digital adaptation strategy from a change management perspective.
Niniejszy artykuł bada siły wewnętrzne, które ukształtowały strategię adaptacji cyfrowej dla MŚP rozpoczynających cyfrową transformację rewolucji przemysłowej 4.0 (IR4.0). Przyjęto jakościowy projekt studium przypadku z udziałem MŚP z sektora produkcyjnego i usługowego w Malezji. Dane zostały zebrane za pomocą częściowo ustrukturyzowanych wywiadów i poparte zasobami ze strony internetowej firm. Przyjmując Model Planowanej Zmiany Procesu i Model Procesu Adaptacji Technologii jako nowe soczewki teoretyczne w badaniu adaptacji cyfrowej, wnioski z wielu studiów przypadku z wykorzystaniem analizy tematycznej ujawniły cztery wymiary sił wewnętrznych napędzających adaptację cyfrową MŚP: strategia biznesowa, tworzenie wartości, przywództwo cyfrowe i talent cyfrowy. Ustalenia przyczyniają się do teoretycznego opracowania strategii adaptacji cyfrowej z perspektywy zarządzania zmianą.
Źródło:
Polish Journal of Management Studies; 2021, 24, 1; 306--321
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, Geometry optimization, Mulliken, MEP, HOMO-LUMO and NLO properties of 2-aryl-3-(2,6-diisopropylphenyl)thiazolidin-4-one based on DFT calculations
Autorzy:
Rameshkumar, R.
Santhi, N.
Powiązania:
https://bibliotekanauki.pl/articles/1178248.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
FT-IR
HOMO–LUMO
Thiazolidin-4-one
hyperpolarizability
Opis:
A novel compounds 2-(substitutedphenyl)-3-(2,6-diisopropylphenyl)thiazolidin-4-one (8-12) were synthesized and characterized with the aid of spectral techniques. The molecular geometry of synthesized compound was calculated in the ground state by density functional theory (DFT/B3LYP) using 6-31G(d,p) basis set. The Mulliken and MEP analyses confirm the reactive sites in the designed compounds. The calculated HOMO and LUMO energies were used to analyze the charge transfer within the molecule. The electrical dipole moment (μ) and first hyperpolarizability (βo) values have been computed using DFT/B3LYP method. The higher first order hyperpolarizability of 12 found to be 1.20 x10-30 esu indicating its use as non-linear optical (NLO) material.
Źródło:
World Scientific News; 2018, 91; 59-72
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of 2-(5-bromo-2-(2,2,2-trifluoroethoxy)phenyl)-5-aryl-1,3,4-oxadiazoles and their FT-IR, NMR, Mulliken, MEP, HOMO-LUMO and NLO
Autorzy:
Rajalakshmi, C.
Santhi, N.
Powiązania:
https://bibliotekanauki.pl/articles/1177905.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1
3
4-oxadiazoles
FT-IR
HOMO–LUMO
hyperpolarizability
Opis:
A series of novel 2-(5-bromo-2-(2,2,2-trifluoroethoxy)phenyl)-5-aryl-1,3,4-oxadiazole (3a-e) were synthesized and confirmed by spectral analyses. The optimized structure with their bonding aspects and vibrational frequencies of the same have been examined utilizing DFT-B3LYP technique with a basis set 6-31G(d,p). In the optimized structures of compounds 3a-e, the bond lengths and bond angles are in accord with their corresponding reported analogous. The vibrational frequencies resulted from experimental as well as theoretical are in well accord with each other. Furthermore, Mulliken charge and MEP analyses of the compound have been calculated in order to get insight into the compound. The quantum chemical descriptors such as HOMO and LUMO energies were used to analyze the charge transfer within the molecule. In addition, the results of polarizabilities, first order hyperpolarizabilities and dipole moment of title compounds imply that these could be utilized for the preparation of NLO crystals.
Źródło:
World Scientific News; 2018, 97; 80-98
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of copper(II) complex of 3-methyl-2,6-diphenylpiperidin-4-one oxime
Autorzy:
Thirunarayanan, G.
Lakshmanan, K.
Powiązania:
https://bibliotekanauki.pl/articles/1076144.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Complexation
Copper chloride
Piperidine-4-one
Piperidine-4-oneoxime
UV and IR spectra
Opis:
A novel six membered heterocyclic oxime namely 3-methyl-2,6-diphenylpiperidin-4-oneoxime was prepared from the condensation of 3-methyl-2,6-diphenylpiperidin-4-one and hydroxylamine hydrochloride. The obtained oxime was characterized by their physical, analytical and spectroscopic data. This oxime was utilized as ligand for preparation of the copper complex. The oxime belongs to bidentate ligand nature. The copper complex of this oxime was prepared by the conventional heating of ethanolic solution of this oxime and copper chloride pentahydrate. The obtained copper complex was analyzed by their physical constants, analytical, pH measurements, UV and IR spectral data. These physicochemical analysis results confirmed, the structure of the complex was octahedral.
Źródło:
World Scientific News; 2019, 116; 102-114
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectroscopic characterization and antimicrobial evaluation of some (E)-N-(4-substitutedbenzylidene)-4-fluorobenzenesulfonamides
Autorzy:
Jayanthi, P.
Jesu Retna Raj, G.
Sekar, M.
Thanikachalam, V.
Powiązania:
https://bibliotekanauki.pl/articles/1113828.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
4-fluorobenzenesulfonamide
Bauer-Kirby
IR spectra
NMR spectra
antimicrobial activities
Opis:
In the present study, six numbers of Schiff bases (1-6) have been synthesized by the condensation of 4-fluorobenzenesulfonamide and substituted aromatic aldehyde. The purities of these Schiff bases have been checked by their physical constants, IR, 1H NMR and 13CNMR spectral data. The antimicrobial activities of these Schiff bases have been evaluated using Bauer-Kirby method.
Źródło:
World News of Natural Sciences; 2017, 13; 101-112
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hammett spectral correlations in some aryl 1,3-oxazine-4-thione derivatives
Autorzy:
Thirunarayanan, G.
Sekar, K. G.
Powiązania:
https://bibliotekanauki.pl/articles/412394.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1,3-oxazine-4-thiones
IR spectra
13C NMR spectra
Hammett correlation
Opis:
A series of some aryl 1,3-oxazine-4-thione derivatives have been synthesized by 1-methyl imidazole catalyzed three component one pot synthetic method in room temperature. The purities of these thiones were studied by their physical constants and spectroscopic data. The infrared and 13C NMR spectral data of CN and CS were correlated with Hammett substituent constants, F and R parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effect of substituent on the spectral data was studied.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 17, 2; 193-200
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Forth Industrial Revolution (4 IR): Digital Disruption of Cyber – Physical Systems
Autorzy:
Kasza, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1058063.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Forth Industrial Revolution (4IR)
H2M (human to machine) communication
Industrial Internet of Things (IIOT)
Industry 4.0
Internet of Things (IOT)
M2H (machine to human)
M2M (machine to machine)
SMAC (social
Smart Manufacturing
analytics and cloud)
artificial intelligence (AI)
cyber-physical systems
digital disruption (disruptive innovations)
infosphere
mobile
pervasive computing
philosophy of information
semantic web
symbiotic and ubiquitous web
Opis:
Article focus of the disruptive character of technological innovations brought by Fourth Industrial Revolution (4IR), with its unprecedented scale and scope, and exponential speed of incoming innovations, described from the point view of ‘unintended consequences’ (cross cutting impact of disruptive technologies across many sectors and aspects of human life). With integration of technology innovations emerging in number of fields including advanced robotics, pervasive computing, artificial intelligence, nano- and bio- technologies, additive and smart manufacturing, Forth Industrial Revolution introduce new ways in which technology becomes embedded not only within the society, economy and culture, but also within human body and mind (described by integration of technologies, collectively referred to as cyber-physical systems). At the forefront of digital transformation, based on cyber physical systems, stands Industry 4.0, referring to recent technological advances, where internet and supporting technologies (embedded systems) are serving as framework to integrate physical objects, human actors, intelligent machines, production lines and processes across organizational boundaries to form new kind of intelligent, networked value chain, called smart factory. Article presents broader context of ‘disruptive changes (innovations)’ accompanying 4IR, that embrace both economical perspective of ‘broader restructuring’ of modern economy and society (described in second part of the article as transition from second to third and forth industrial revolution), and technological perspective of computer and informational science with advances in pervasive computing, algorithms and artificial intelligence (described in third part of article with different stages of web development : web 1.0, web 2.0, web 3.0, web 4.0). What’s more important, article presents hardly ever described in literature, psychological and philosophical perspective, more or less subtle reconfiguration made under the influence of these technologies, determining physical (body), psychological (mind) and philosophical aspect of human existence (the very idea of what it means to be the human), fully depicted in the conclusion of the article. The core element (novelty) is the attempt to bring full understanding and acknowledgment of disruptive innovations’, that “change not only of the what and the how things are done, but also the who we are”, moving beyond economical or technological perspective, to embrace also psychological and philosophical one.
Źródło:
World Scientific News; 2019, 134, 2; 118-147
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of substituents on 4-(substituted phenyl sulfonamide)benzoic acids by IR and NMR spectra
Autorzy:
Muthuvel, I.
Thirunarayanan, G.
Dineshkumar, S.
Powiązania:
https://bibliotekanauki.pl/articles/1059444.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
4-(substituted phenyl sulfonamide) benzoic acids
Hammett correlations
IR and NMR spectra
Regression analysis
Opis:
About nine 4-(substituted phenyl sulfonamide) benzoic acid derivatives were synthesized by ultrasound irradiation method. The synthesized sulfonamides were characterized by their physical constants and spectroscopic data. The characteristic infrared SOsym, SOasym, NH and CO vibrations (ν, cm-1), the chemical shifts (δ, ppm) of NH and CO of sulfonamides were assigned and correlated with various Hammett substituent constants and Swain-Lupton parameters using single and multi-regression analysis. From the results of the statistical analysis, the effects of substituents on the spectral frequencies were discussed.
Źródło:
World Scientific News; 2019, 128, 2; 216-233
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicochemical Properties and Laser Initiation of a Copper Perchlorate Complex with 3(5)-Hydrazino-4-amino-1,2,4-triazole (HATr) as a Ligand
Autorzy:
Ilyushin, M. A.
Tselinskiy, I. V.
Smirnov, A. V.
Shugalei, I. V.
Powiązania:
https://bibliotekanauki.pl/articles/358314.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
IR-laser
pulse
ignition
3(5)-hydrazino-4-amino-1,2,4-triazole (HATr) as a ligand
light-sensitive explosives
Opis:
Several metal perchlorate complexes with 3(5)-hydrazino-4-amino- 1,2,4-triazole as a ligand were investigated. It was shown that the threshold of laser initiation of the copper complex changed under the influence of additives of optically transparent polymers, detonation nanodiamonds or nanotubes.
Źródło:
Central European Journal of Energetic Materials; 2012, 9, 1; 3-16
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectral correlations and antimicrobial activities of some 2-hydroxyphenyl-styrylketone
Autorzy:
Sathiyamoorthi, K.
Mala, V.
Suresh, R.
Sakthinathan, S.P.
Kamalakkannan, D.
Ranganathan, K.
Arulkumaran, R.
Sundararajan, R.
Vijayakumar, S.
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/411660.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
solvent-free synthesis
SiO2-H3PO4
2’-hydroxyphenylchalcones
UV
IR
NMR spectra
Opis:
Some 2’-hydroxyphenylchalcones have been synthesized under microwave irradiation by Claisen-Schmidt condensation between substituted 2-hydroxyacetophenone and substituted benzaldehydes using catalytic amount of SiO2-H3PO4. These chalcones were established by their physical constants and spectroscopic data published earlier. The UV, IR, 1H NMR and 13C NMR spectral data of these chalcone have correlated with Hammett substituent constants, F and R parameters. All the compounds have been subjected to screened for antimicrobial activity.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 7, 2; 102-119
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Insect antifeedant potent halogen substituted phenyl chalcones
Autorzy:
Sundararajan, R.
Arulkumaran, R.
Vijayakumar, S.
Kamalakkannan, D.
Suresh, R.
John, J. S.
Ranganathan, K.
Sakthinathan, S. P
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/412081.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Substituted styryl 2′,3′,4′-trichlorophenyl ketones
sulfated Titania
IR and NMR spectra
Insect antifeedant activities
Opis:
Some 2′,3′,4′-trichlorophenyl chalcones [(E)-1-(2,3,4-trichlorophenyl)-3-(substituted phenyl)-2-propen-1-ones] have been synthesised using sulfated Titania catalyzed solvent-free aldol condensation between 2,3,4-trichloroacetophenone and substituted benzaldehydes. The purities of synthesised chalcones were checked by their analytical, physical and spectroscopic data reported in literature. The insect antifeedant activities of these chalcones have been studied using 4th instar larvae Achoea Janata L by castor leaf disc bio-assay method. The chloro substituted chalcones shows significant insect antifeedant activity.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 1; 67-73
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
IR and 1H NMR spectral studies of some 2-Amino-4-isopropyl-6-methoxy-N-phenylpyrimidine-5-carboxamides: Assessment of substituent effects
Autorzy:
Arulkumaran, R.
Sundararajan, R.
Manikandan, V.
Sathiyendiran, V.
Pazhamalai, S.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/412343.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
2-Amino-4-isopropyl-6-methoxy-N-phenylpyrimidine-5-carboxamides
IR spectra
NMR spectra
substituent effects
Opis:
A series of 2-Amino-4-isopropyl-6-methoxy-N-phenylpyrimidine-5-carboxamide compounds have been synthesized from various substituted dithioacetal and guanidine. The purities of these compounds were checked by their physical constants, UV, IR, NMR and MASS spectral data. The IR and 1HNMR spectral data of these compounds have been correlated with Hammett sigma constants, F and R parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effects of substituents on the spectral group frequencies have been discussed.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 19, 1; 15-25
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł

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