Comments on the reaction of ethyl 4-(diethoxyphosphinyl)-3-oxobutanoate and related phosphonate esters with enals
作者:Cornelis M Moorhoff、David F Schneider
DOI:10.1016/s0040-4039(00)95781-2
日期:1987.1
Preparation of alkyl 3-methylalka-2,4-dienoates from γ,δ-unsaturated β-keto esters via the corresponding conjugated unsaturated 3-enol phosphates
作者:Cornelis M. Moorhoff、David F. Schneider
DOI:10.1016/s0040-4020(98)00071-4
日期:1998.3
Methylation of α,β,γ,δ-unsaturated-β-substituted enol phosphates with lithium dimethyl cuprate gave a mixture of (2E,4E)- and (2Z,4E) alkyl 3-methylalka-2,4-dienoates and unsubstituted alkyl alka-2,4-dienoates. An improved synthesis is described for ethyl β-safranate and the insect growth regulator hydroprene.