Facile conversion of trifluoroacetyltriphenylsilane 2,4,6-triisepropylbenzenesulfonylhydrazone to 2,2,2-trifluorodiazoethane. An unusual example of the bamford-stevens reaction
作者:Fuqiang Jin、Yuanyao Xu、Yiling Ma
DOI:10.1016/s0040-4039(00)60032-1
日期:1992.10
the presence of Et3N to produce trifluorcmethylated pyrazoles or pyrazolines in good yields. The reaction was found to proceed through the intermediacy of 2,2,2-trifluorodiazoethane, and this unusual co)nversion of 1 to 2,2,2-trifluorodiazoethane was studied from the mechanistic viewpoint.
在Et 3 N存在下,三氟乙酰基三苯基硅烷2,4,6-三异丙基苯磺酰基((1)与亲二氟醚反应生成三氟甲基化的吡唑或吡唑啉,收率高。发现该反应在2,2,2-三氟重氮乙烷的中间进行,并且从机理的角度研究了这种不寻常的从1到2,2,2-三氟重氮乙烷的共转化。