Conformations and competitive [2 + 2] cycloadditions of intramolecular exciplexes of some anisylalkenyl 9-phenanthrenecarboxylates
作者:Hirochika Sakuragi、Katsumi Tokumaru、Hiroki Itoh、Kohki Terakawa、Katsuo Kikuchi、Richard A. Caldwell、Chien Chung Hsu
DOI:10.1021/ja00388a060
日期:1982.12
Photochemical and Photophysical Behavior of<i>p</i>-Methoxyphenyl alkenyl Phenanthrenecarboxylates. I. Structure and Competitive Formation of Intramolecular Cycloaddition Products
作者:Hirochika Sakuragi、Katsumi Tokumaru、Hiroki Itoh、Kohki Terakawa、Katsuo Kikuchi、R. A. Caldwell、Chien-Chung Hsu
DOI:10.1246/bcsj.63.1049
日期:1990.4
entenyl, (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-MCP) and trans-anethole