Metalation reactions.
作者:S. Cabiddu、S. Melis、P.P. Piras、F. Sotgiu
DOI:10.1016/s0022-328x(00)94217-7
日期:1979.10
the presence and absence of TMEDA, has been investigated. The results showed that metalation at the thioalkyl carbon probably occurs by direct attack of the organolithium reagent, although a transmetalation reaction cannot be excluded in some cases. It has also been found that benzylic, thio-methylic, and ring metalation occurs in ether alone, whereas mainly thio-methylic or ring metalation occurs
在存在和不存在TMEDA的情况下,已经研究了用正丁基锂对邻烷基和邻邻二烷基取代的烷基硫代苯进行金属化。结果表明,尽管在某些情况下不能排除跨金属化反应,但在硫代烷基碳上的金属化可能是通过有机锂试剂的直接侵蚀而发生的。还发现苄基,硫代甲基和环金属化仅在醚中发生,而硫代甲基或环金属化主要在TMEDA存在下发生。