Mechanism of acylation of lithium phenylacetylide with a Weinreb amide.
نویسندگان
چکیده
Additions of lithium phenylacetylide to a Weinreb amide are described. Dimeric lithium acetylide reacts via a monosolvated monomer-based transition structure. The robust tetrahedral intermediate forms sequentially a C(1) 2:2 mixed tetramer with the excess lithium acetylide and a 1:3 (alkoxide-rich) mixed tetramer. The stabilities of the mixed tetramers are consistent with a pronounced autoinhibition.
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عنوان ژورنال:
- The Journal of organic chemistry
دوره 71 18 شماره
صفحات -
تاریخ انتشار 2006