Photochemical and Photophysical Behavior of p-Methoxyphenyl alkenyl Phenanthrenecarboxylates. I. Structure and Competitive Formation of Intramolecular …

H Sakuragi, K Tokumaru, H Itoh, K Terakawa…

Index: Sakuragi; Tokumaru; Itoh; Terakawa; Kikuchi; Caldwell; Hsu Bulletin of the Chemical Society of Japan, 1990 , vol. 63, # 4 p. 1049 - 1057

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Citation Number: 21

Abstract

Irradiation of (E)-3-(p-methoxyphenyl)-3-pentenyl,(E)-4-(p-methoxyphenyl)-4-hexenyl, and (E)-5-(p-methoxyphenyl)-5-heptenyl 9-phenanthrenecarboxylates (B-2E, B-3E, and B-4E, respectively) in benzene gave intramolecular [2+ 2] cycloadducts, cyclobutane derivatives (CB-2, CB-3, and CB-4, respectively) possessing the same conformation as an intermolecular [2+ 2] cycloadduct (CB-0) between methyl 9-phenanthrenecarboxylate (9- ...