Cyclodextrin mediated enantio and diastereoselective geometric photoisomerization of diphenylcyclopropane and its derivatives

Koodanjeri, Smriti ; Ramamurthy, V. (2002) Cyclodextrin mediated enantio and diastereoselective geometric photoisomerization of diphenylcyclopropane and its derivatives Tetrahedron Letters, 43 (50). pp. 9229-9232. ISSN 0040-4039

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0040-4039(02)02231-1

Abstract

cis-Diphenylcyclopropanes upon direct excitation and triplet sensitization undergo geometric isomerization to the corresponding trans isomers. In solution the trans isomers are formed as a 1:1 enantiomeric or diasteromeric mixture. Upon inclusion within β-cyclodextrin the same molecules give the trans isomers enriched in one optical isomer. Enantiomeric excess and diasteromeric excess induced by the optically active host β-cyclodextrin although small is mechanistically significant.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:90058
Deposited On:04 May 2012 14:32
Last Modified:04 May 2012 14:32

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