Supramolecular control of [2+2] photodimerization via hydrogen bonding

被引:46
作者
Darcos, V
Griffith, K
Sallenave, X
Desvergne, JP
Guyard-Duhayon, C
Hasenknopf, B
Bassani, DM [1 ]
机构
[1] Univ Bordeaux 1, Grp Chim Supramol Biomimetisme & Nanosci, CNRS,UMR 5802, LCOO, F-33405 Talence, France
[2] Univ Paris 06, CNRS, UMR 7071, Lab Chim Inorgan & Mat Mol, F-75252 Paris, France
关键词
D O I
10.1039/b307525g
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The use of supramolecular catalysis to control the photoinduced dimerization of styrene, cinnamate, and stilbene chromophores is reported. The strategy employs the formation of a 2 : 1 supramolecular assembly in the presence of 5,5- dihexylbarbituric acid ( DHB). A 3- to 10- fold increase in dimerization efficiency is observed in its presence, concomitant with accrued selectivity for the syn photodimers. The origin of the regioselectivity in the presence of DHB is discussed in terms of topochemical control within the supramolecular architecture.
引用
收藏
页码:1152 / 1161
页数:10
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