PHOTOCHEMISTRY OF NONCONJUGATED BICHROMOPHORIC SYSTEMS .3. SYNTHESIS AND PHOTOREACTION OF POLY(ETHYLENE GLYCOL) BISCOUMARINYLOXYACETATES

Citation
Ym. Wang et al., PHOTOCHEMISTRY OF NONCONJUGATED BICHROMOPHORIC SYSTEMS .3. SYNTHESIS AND PHOTOREACTION OF POLY(ETHYLENE GLYCOL) BISCOUMARINYLOXYACETATES, Chinese journal of chemistry, 15(2), 1997, pp. 169-173
Citations number
7
Categorie Soggetti
Chemistry
ISSN journal
1001604X
Volume
15
Issue
2
Year of publication
1997
Pages
169 - 173
Database
ISI
SICI code
1001-604X(1997)15:2<169:PONBS.>2.0.ZU;2-K
Abstract
A series of poly(ethylene glycol) biscoumarinyloxyacetates have been s ynthesized and their intramolecular photochemical cyclodimerizations h ave been studied. It was found that only syn-HT configuration products were obtained when these bisesters were directly irradiated in chloro form, and the yields of the products decreased with the increase of th e chain length. This photocyclization reaction is a convenient and eff ective method to synthesize macrocyclic compounds.