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Natural sucrose esters: Perspectives on the chemical and physiological use of an under investigated chemical class of compounds
(2020-09-01)
The present review describes the chemistry and physiological properties of the sucrose esters (SEs) obtained from natural or synthetic pathways, with emphasis on those that have aliphatic and phenylpropanoid substituents ...
Automatic identification by C-13 NMR of substituent groups bonded in natural product skeletons
(Elsevier B.V., 2002-11-01)
The aim of this paper is to present a procedure that utilizes C-13 NMR for identification of substituent groups which are bonded to carbon skeletons of natural products. For so much was developed a new version of the program ...
Theoretical Substituent Electrophilicities
(SOC BRASILEIRA QUIMICA, 2011)
A Hammett-like equation, relating theoretical global and substituent electrophilicities, is derived for substituted ethylenes and benzoic acids, allowing the calculation of electrophilic substituent constants a.. Correlations ...
Electronic effects of donor and acceptor substituents on dipyrido(3,2-a : 2 ',3 '-c)phenazine (dppz)
(GORDON BREACH PUBLISHING. TAYLOR & FRANCIS GROUP, 2001)
A carbon-13 NMR study of new 4-substituted neostigmine methyl sulphates: Correlations of substituent induced chemical shifts with substituent parameters
(Spectroscopy Soc Canada, OttawaOttawaCanadá, 2000)
A carbon-13 NMR study of 2-substituted-5-N,N-dimethylaminophenols: Correlations of substituent-induced chemical shifts with substituent parameters
(Spectroscopy Soc Canada, OttawaOttawaCanadá, 1998)
Quantitative studies on the: P -substituent effect of the phenolic component on the polymerization of benzoxazines
(Royal Society of Chemistry, 2018-08)
The pure monofunctional benzoxazines substituted by either electron donating or withdrawing groups are synthesized to verify the electronic effect on the polymerization behaviors without any complicated factors of the ...
A carbon-13 NMR study of 2-substituted-5-N ',N '-dimethylaminophenyl-N,N-dimethylcarbamates: Correlations of substituent-induced chemical shifts with substituent parameters
(Spectroscopy Soc Canada, OttawaOttawaCanadá, 1999)
Automatic identification by C-13 NMR of substituent groups bonded in natural product skeletons
(Elsevier B.V., 2002-11-01)
The aim of this paper is to present a procedure that utilizes C-13 NMR for identification of substituent groups which are bonded to carbon skeletons of natural products. For so much was developed a new version of the program ...