1973 年 21 巻 9 号 p. 1901-1905
The ring C-13 nuclear magnetic resonance chemical shifts of 1, 4-and 1, 3-disubstituted benzene derivatives were compared with those of monosubstituted benzene derivatives and the substituent constants σi. The slopes of C-1 and C-2 chemical shifts of 1, 4-disubstituted benzene derivatives and also those of C-1 and C-5 of 1, 3-disubstituted series are linear with respect to σi. The slopes of other positions have the same characters with those of the corresponding shifts of monosubstituted benzene derivatives.
