N. Rodios, A. Bojilova, A. Terzis
Sep 1, 1994
Citations
0
Influential Citations
15
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
3-Nitro- and 3-diethylphosphonocoumarins 4a,b react with phenacyl bromide stereoselectively under phase-transfer conditions, in the presence of a base and of a transfer agent, to give the cyclopropyl derivatives 6 and 7 in good yields. A mechanistic explanation is given for the stereoselectivity of the reaction. The X-ray molecular structure of compound 6a is also presented.