SINGLE-FREQUENCY PROTON DECOUPLING IN C-13 NMR-SPECTRA - C-13 CHEMICAL-SHIFTS AND METHYL SUBSTITUENT CHEMICAL-SHIFTS IN METHYLQUINOLINES

被引：31

作者：

JOHNS, SR ^{[1
]}

WILLING, RI ^{[1
]}

CLARET, PA ^{[1
]}

OSBORNE, AG ^{[1
]}

机构：

[1] CITY UNIV LONDON,DEPT CHEM,LONDON EC1V 4PB,ENGLAND

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 1979年 / 32卷 / 04期

关键词：

D O I：

10.1071/CH9790761

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single-frequency decoupled and fully coupled spectra have been used to assign 13C chemical shifts to a number of methyl-substituted quinolines, and the merits of the various decoupling techniques are compared. Ambiguities in assignments of closely similar chemical shifts by the substituent chemical shift (scs) method have been resolved by meta-13C-1H coupling constants. Long-range methyl scs parameters in methylquinolines, and the limitations of the scs method in shift assignments, are discussed. © 1979, CSIRO. All rights reserved.

引用

页码：761 / 768

页数：8

共 8 条

[1] 2,4,5-TRIMETHYLQUINOLINES AND 2,4,7-TRIMETHYLQUINOLINES [J].