Selective C-alkylation of 2-methyl-1,3-cyclopentanedione and 2-methyl-1,3-cyclohexanedione was performed by using tetraphenylstibonium methoxide (Ph4SbOMe). The presence of a substituent at the 2-position was essential for C-alkylation.
利用甲氧基
四苯基锡鎓(Ph4SbOMe)对
2-甲基-1,3-环戊二酮和
2-甲基-1,3-环己二酮进行了选择性 C-烷基化反应。2 位取代基的存在对 C- 烷基化至关重要。