Reaction de wittig-horner entre phosphonates et cyclohexenones β-substituees.
作者:Serge Geribaldi、Michel Rouillard
DOI:10.1016/s0040-4020(01)80938-8
日期:1991.1
attempted in order to prepare α,β,γ,δ-unsaturated nitriles via the Wittig-Horner reaction of β-substituted cyclohex-2-en-1-ones with diethyl cyanomethyl phosphonate. Among them, the one using NaH as base in refluxing THF gives only the products resulting from carbonyl attack, in good yields. The stereochemistry of the reaction is discussed.
为了通过β-取代的环己-2-烯-1-酮与氰基甲基膦酸二乙酯的Wittig-Horner反应制备α,β,γ,δ-不饱和腈,尝试了各种方法。其中,在回流的THF中使用NaH作为碱的化合物仅以高收率得到了羰基侵蚀产生的产物。讨论了反应的立体化学。