THE PHOTOCHEMISTRY OF O-BENZYLBENZOPHENONE - A PERICYCLIC CORNUCOPIA

Citation
M. Sobczak et Pj. Wagner, THE PHOTOCHEMISTRY OF O-BENZYLBENZOPHENONE - A PERICYCLIC CORNUCOPIA, Tetrahedron letters, 39(17), 1998, pp. 2523-2526
Citations number
25
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
39
Issue
17
Year of publication
1998
Pages
2523 - 2526
Database
ISI
SICI code
0040-4039(1998)39:17<2523:TPOO-A>2.0.ZU;2-C
Abstract
UV irradiation of the ride compound produces cis-1,2-diphenylbenzocycl obutenol quantitatively. While stable at temperatures below 0 degrees at room temperature it establishes a high enough equilibrium populatio n of its EE o-xylylenol precursor to undergo slow reversion to ketone and rapid reaction with maleic anhydride or oxygen, as well as photoin duced cyclization to the trans cyclobutenol. (C) 1998 Elsevier Science Ltd. All rights reserved.