P–C Bond formation via direct and three-component conjugate addition catalyzed by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD)
作者:Zhiyong Jiang、Yan Zhang、Weiping Ye、Choon-Hong Tan
DOI:10.1016/j.tetlet.2006.11.019
日期:2007.1
The direct addition of P(O)–H bonds (dialkyl phosphites and diphenyl phosphonite) across various activated alkenes was catalyzed effectively by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD). This is a mild, rapid and efficient protocol to generate P–C bonds. This simple procedure allows a series of dialkyl alkylphosphonates and trisubstituted phosphine oxides to be prepared in high yields. Further investigation
1,5,7-三氮杂双环[4.4.0]癸-5-烯(TBD)有效地催化了各种活化烯烃之间直接添加的P(O)-H键(亚磷酸二烷基酯和亚磷酸二苯酯)。这是生成P–C键的温和,快速且有效的协议。这种简单的方法可以高收率制备一系列的烷基二膦酸烷基酯和三取代的氧化膦。进一步的研究导致了方便的一锅三组分反应,该反应包含二苯基亚膦酸酯,丙二腈和醛。