Cyclopentenones from 1,2-disiloxycyclobutene via silylated 1-vinylcylopropanols. Application to the synthesis of dihydrojasmone and cis-jasmone
作者:J. Salaün、Y. Almirantis
DOI:10.1016/s0040-4020(01)91969-6
日期:1983.1
An effective synthesis of 2,3-disubstituted 2-cyclopentenones involves C4→C3 ring contraction of the readily available 1,2-disiloxycyclobutene followed by thermal C3→C5 ring enlargement of trimethylsiloxyvinyl-cyclopropanes. To illustrate the convenience of this new approach the total syntheses of 2-methyl-3-p-tolyl-2-cyclopentenone, dihydrojasmone. and cis-jasmone are reported.