C-13 NMR CHEMICAL-SHIFTS SUBSTITUENT EFFECTS OF (E)-N-ETHYL-N-METHYLAMIDES AND (Z)-N-ETHYL-N-METHYLAMIDES

被引：0

作者：

BONACORSO, HG ^{[1
]}

CARO, MSB ^{[1
]}

ZANATTA, N ^{[1
]}

MARTINS, MAP ^{[1
]}

机构：

[1] UNIV FED SANTA MARIA,DEPT QUIM,BR-97119 SANTA MARIA,RS,BRAZIL

来源：

SPECTROSCOPY LETTERS | 1992年 / 25卷 / 08期

关键词：

C-13 NMR OF AMIDES; (E)-N-ETHYL-N-METHYLAMIDES AND (Z)-N-ETHYL-N-METHYLAMIDES; C-13 NMR SUBSTITUENT EFFECTS;

D O I：

10.1080/00387019208017859

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Carbon-13 NMR chemical shifts of a series of (E)- and (Z)-N-ethyl-N-methylamides [RC(O)NEtMe, R=H, Me, Et, i-Pr, t-Bu, CF3, ClCH2, Cl2CH, Cl3C, BrCH2, Br2CH, Br3C and ICH2] are reported. The alpha-carbon and carbonyl carbon chemical shifts are correlated with the empirical alpha-substituent effect and Charton's electrical parameter (sigma(I)), respectively. The N-alkyl carbon resonances were attributed mainly to the gamma- and delta-effects of R.

引用

页码：1207 / 1220

页数：14

共 19 条

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