Journal of the American Chemical Society

Proton transfers among oxygen and nitrogen acids and bases in dimethyl sulfoxide solution

CD Ritchie, S Lu

Index: Ritchie, Calvin D.; Lu, Shanzheng Journal of the American Chemical Society, 1990 , vol. 112, # 21 p. 7748 - 7756

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Citation Number: 20

Abstract

Conclusions In contrast with the I, l-diarylethylenes which show a onering/two-ring flip dichotomy of rotational pathways, helical benzophenones undergo a helicity reversal process exclusively via a one-ring flip process. This is ascribed to the larger Ar-C= X conjugation energy for X= 0 (benzophenones) than in X= CR2 (1, l-diarylethylenes). The structural correlation method is used for tracing the preferred rotational mechanism, and ...