Thermally irreversible photochromic systems. Reversible photocyclization of 1, 2-bis (benzo (b) thiophen-3-yl) ethene derivatives.

K Uchida, Y Nakayama, M Irie

Index: Bulletin of the Chemical Society of Japan, , vol. 63, # 5 p. 1311 - 1315

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Citation Number: 253

Abstract

May, 1990] © 1990 The Chemical Society of Japan Bull. ... The results are summarized in Table 2. In the Table, the differences of chemical shifts between benzo[b]- thiophenyl moiety of compounds, 1a and 2a, and 3- methylbenzo[b]thiophene are listed in the brackets. ...