Enantio- and diastereodifferentiating cis,trans-photoisomerization of 2 beta,3 beta-diphenylcyclopropane-1 alpha-carboxylic acid derivatives in organized media

Authors
Cheung, E Chong, KCW Jayaraman, S Ramamurthy, V Scheffer, JR Trotter, J
Citation
E. Cheung et al., Enantio- and diastereodifferentiating cis,trans-photoisomerization of 2 beta,3 beta-diphenylcyclopropane-1 alpha-carboxylic acid derivatives in organized media, ORG LETT, 2(18), 2000, pp. 2801-2804
Citations number
13
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANIC LETTERS
ISSN journal
15237060 → ACNP
Volume
2
Issue
18
Year of publication
2000
Pages
2801 - 2804
Database
ISI
SICI code
1523-7060(20000907)2:18<2801:EADCO2>2.0.ZU;2-X
Abstract
Four methods of asymmetric induction in the cis,trans-photoisomerization of 2 beta,3 beta diphenylcyclopropane-1 alpha-carboxylic acid derivatives wer e studied. Best results (ca, 80% de) were obtained by irradiation of chiral esters, amides, and salts in NaY and LiY zeolites and in the pure crystall ine state.