作者:David J. Fox、Daniel Sejer Pedersen、Stuart Warren
DOI:10.1039/b606873a
日期:——
α-Diphenylphosphinoyl ketones are selectively and sequentially alkylated at the α-position. Double lithiation and selective alkylation occurs at the less stabilised γ-position. Dephosphinoylation of the alkylation products gives ketones. Mono-alkylation is selective, highly crystalline intermediates are formed and a one-pot strategy is possible. The method is ideally suited for the preparation of acid-sensitive ketones.
CORNISH, CH. A.;WARREN, S., J. CHEM. SOC. PERKIN TRANS., 1985, N 12, 2585-2598
作者:CORNISH, CH. A.、WARREN, S.
DOI:——
日期:——
Cornish Christopher A.; Warren, Stuart, Journal of the Chemical Society. Perkin transactions I, 1985, p. 2585 - 2598
作者:Cornish Christopher A.、Warren, Stuart
DOI:——
日期:——
Stereo-controlled synthesis of γ,δ-unsaturated ketones by the Horner-Wittig reaction
作者:Christopher A Cornish、Stuart Warren
DOI:10.1016/s0040-4039(00)81993-0
日期:1983.1
and isomers of γ,δ-unsaturated ketals may separately be prepared by the Horner-Wittigreaction between 5-diphenylphosphinoylpenta-2-one ethylene acetal (6) and aldehydes, esters, or ketones.