在简单的耐空气无机盐K 3 PO 4的催化下,已使用各种羧酸作为偶联剂构建了伯/仲胺直接N-单/二烷基/氟烷基化的可扩展方案。有利的特征包括100种实例,10种药物和类药物胺,氟化复杂的叔胺,克级合成和同位素标记胺,因此证明了该方法在工业上的潜在适用性。与减少酰胺中间体所需的传统反应性金属氢化物或硼氢化物相比,反应性较小的氢化硅的参与可能有助于显着的官能团相容性。
Benzaldehyde- and Nickel-Catalyzed Photoredox C(sp<sup>3</sup>)–H Alkylation/Arylation with Amides and Thioethers
作者:Xiaojia Si、Lumin Zhang、A. Stephen K. Hashmi
DOI:10.1021/acs.orglett.9b02226
日期:2019.8.16
Herein a synergistic combination of a nickel catalyst and benzaldehyde for the utilization of amides and thioethers in C(sp3)–H alkylation and arylation reactions employing simple aryl or alkyl halides is reported. This method provides a simple and cheap strategy for the direct functionalization of amides and thioethers. Readily available starting materials, mild reaction conditions, a good functional-group