Aza-Wittig Rearrangement of <i>N</i>,<i>N</i>-Dipropargylic α-Amino Alkyllithiums: Periselectivity and Steric Course
作者:Katsuhiko Tomooka、Takahiro Tomoyasu
DOI:10.1055/s-2004-830854
日期:——
The aza-Wittig rearrangement of enantio-defined N,N-dipropargylic α-amino alkyllithiums, generated by tin-lithium exchange, are shown to afford [1,2]- and/or [2,3]-rearrangement products. Both aza-Wittig rearrangements proceed predominantly with inversion of configuration at the Li-bearing carbon terminus.
通过锡-锂交换产生的对映体定义的 N,N-二炔基α-氨基烷基锂的氮杂-Wittig 重排显示出[1,2]-和/或[2,3]-重排产物。氮杂-维蒂希重排主要在含锂碳末端发生构型反转。