作者:Richard D. Chambers、Colin G.P. Jones、Michael J. Silvester、David B. Speight
DOI:10.1016/s0022-1139(00)81194-x
日期:1984.5
Base-catalysed additions of alcohols to F-2-butyne (1) give mainly products of -addition while -addition predominates in uncatalysed additions of alcohols carried out in a diluent. The stereochemistry of addition of diethylamine is very dependent on the solvent used and - or -addition may predominate. Stepwise and concerted mechanisms are advanced to account for these observations. Nucleophilic addition of sulphur
碱催化的醇向F-2-丁炔(1)的加成主要产生-加成的产物,而-加成主要是在稀释剂中进行的未催化加成的醇中。添加二乙胺的立体化学非常取决于所用溶剂,并且-或-添加可能占主导地位。逐步采取了协调一致的机制来解释这些观察结果。硫的亲核加成(1)得到F-四甲基噻吩(68%),水合得到CF 3 CH 2 COCF 3(91%)。