期刊
COMPTES RENDUS CHIMIE
卷 15, 期 4, 页码 311-316出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crci.2011.11.005
关键词
Photochemistry; Thiophenylchromenone; Tetracyclic compounds; Hydrogen transfer; [1,5]-H Sigmatropic rearrangement; Radical reactions; Substituent effects
资金
- CSIR, New Delhi
Photocyclisation of 3-alkoxy-6-chloro-2-(3-methylthiophen-2-yl)-4H-chromen-4-ones in methanol with pyrex filtered UV-light lead to the formation of tetracyclic compounds through intramolecular gamma-hydrogen abstraction. The methyl group on the thiophenyl ring does not interfere in the photocyclisation although it does effect the product formation. (c) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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