A Three-Component Reaction for the One-Pot Preparation of
β-Amino-α,α-Difluoroketones from Trimethyl(trifluoromethyl)silane (CF3TMS), Acylsilanes and Imines
作者:Aurélien Honraedt、Lucía Méndez、Jean-Marc Campagne、Eric Leclerc
DOI:10.1055/s-0036-1588447
日期:2017.9
the acylsilane compared to the imine allows the direct mixing of all the reagents in a three-component, one-pot process. A methodology allowing the direct preparation of β-amino-α,α-difluoroketones from the Ruppert–Prakash reagent (CF3TMS), acyltrimethylsilanes and N-Boc or N-(diphenylphosphinyl)imines is reported. The process, initiated by a catalytic amount of tetra-n-butylammonium difluorotriphenylsilicate
摘要 甲方法论允许β氨基-α,α-difluoroketones从鲁珀特-普拉卡什试剂(CF直接制备3 TMS),acyltrimethylsilanes和Ñ -Boc或ñ - (二苯基膦基)亚胺进行报告。该方法由催化量的二氟三苯基硅酸四正丁基铵(TBAT)引发,涉及在酰基硅烷中添加CF 3 TMS,然后进行布鲁克重排并消除氟离子。后者促进将所得的二氟烯氧基硅烷添加到亚胺中。与亚胺相比,酰基硅烷具有更高的亲电子性,可以在三组分一锅法中直接混合所有试剂。 甲方法论允许β氨基-α,α-difluoroketones从鲁珀特-普拉卡什试剂(CF直接制备3 TMS),acyltrimethylsilanes和Ñ -Boc或ñ - (二苯基膦基)亚胺进行报告。该方法由催化量的二氟三苯基硅酸四正丁基铵(TBAT)引发,涉及在酰基硅烷中添加CF 3 TMS,然后进行布鲁克重排并消除氟离子。后者促进将所得