An efficient preparation of α-substituted acrylonitriles 6  based on the utilization of 4-cyano-3-ketothiolane enolate anion  (3) as a synthetic equivalent to α-acrylonitrile anion  (1) is described.
                                    描述了基于利用 4-cyano-3-ketothiolane 烯醇阴离子 (3) 作为 α-
丙烯腈阴离子 (1) 的合成等价物的有效制备α-取代
丙烯腈 6 的方法。