In nearly neutral media, the reaction of allylic tributyltin with aldehydes is effectively catalyzed by Bu2SnCl2 complexes. The addition of coordinative reagents and benzoyl chloride as a quencher is required of the catalytic allylation, furnishing homoallyl benzoates in good to excellent yields, where a regioreversed coupling to conventional methods using crotyltributyltin is exclusively observed.
在接近中性的介质中,
烯丙基三丁基锡与醛的反应可由 Bu2SnCl2 复合物有效催化。催化烯丙基化反应时需要加入配位试剂和
苯甲酰氯作为淬灭剂,以良好到极佳的产率获得均烯丙基
苯甲酸酯,与使用
巴豆三
丁基锡的传统方法相比,这种反应只出现了逆向偶联。