Bulletin of the Chemical Society of Japan

Hetera-p-carbophanes. III. Conformation of Amide Groups in and Internal Rotation of Diaza [n] paracyclophanes with Two Alkoxy Groups at the Benzene Ring

K Sakamoto, M Oki

Index: Sakamoto,K.; Oki,M. Bulletin of the Chemical Society of Japan, 1975 , vol. 48, p. 497 - 504

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Citation Number: 7

Abstract

A series of diazadioxo [n] paracyclophane derivatives with two alkoxy groups at the benzene ring were prepared. The conformation of amide groups in these compounds were studied by infrared, PMR, and 13 C NMR spectra to draw a conclusion that both amide groups are s- trans. Thus the infrared absorptions at 3430 and 3405 cm− 1 are attributed to N–H··· π interacting and N–H··· O bonded trans forms, respectively. NCH 2 protons, which are ...