enantioselective aldol reaction of N-propionylthiazolidinethione and representative aldehydes is disclosed. The reaction is catalyzed by [Ni(S,S)-t-BuBox](Otf)2. Enolization is effected by 2,6-lutidine, and TMSOTf facilitates catalyst turnover. Syn diastereoselectivities range from 88:12 to 97:3, and enantioselectivities are 90% or greater. Both aromatic and enolizable aliphatic aldehydes are included within
                                    公开了N-丙酰基
噻唑烷
硫酮和代表性醛的对映选择性羟醛反应。该反应由 [Ni(S,S)-t-BuBox](Otf)2 催化。烯醇化受 2,6-二
甲基吡啶影响,TMSOTf 促进催化剂周转。合成非对映选择性范围为 88:12 至 97:3,对映选择性为 90% 或更高。芳香族和可烯醇化的脂肪族醛都包括在该醛醇加成过程的范围内。