Tf<sub>2</sub>O/TTBP (2,4,6-Tri-<i>tert</i>-butylpyrimidine): An Alternative Amide Activation System for the Direct Transformations of Both Tertiary and Secondary Amides
作者:Qian He、Jian-Liang Ye、Fang-Fang Xu、Hui Geng、Ting-Ting Chen、Hang Chen、Pei-Qiang Huang
DOI:10.1021/acs.joc.1c01572
日期:2021.12.3
were generally obtained. In addition, Tf2O/TTBP combination was used to promote the condensation reactions of 2-(tert-butyldimethylsilyloxy)furan (TBSOF) with both tertiary and secondary amides, the one-pot reductive Bischler–Napieralski-type reaction of tertiary lactams, and Movassaghi and Hill’s modern version of the Bischler–Napieralski reaction. The value of the Tf2O/TTBP-based methodology was further
研究了十种 Tf 2 O/TTBP 介导的酰胺转化反应。结果表明,与吡啶衍生物2,6-二叔丁基-4-甲基吡啶(DTBMP)和2-氟吡啶(2-F-Pyr.)相比,TTBP可以作为直接转化的替代酰胺活化体系。二级和三级酰胺。对于大多数调查的例子,通常获得更高或相当的产量。此外,Tf 2 O/TTBP组合用于促进2-(叔-丁基二甲基甲硅烷氧基)呋喃(TBSOF)与叔酰胺和仲酰胺,叔内酰胺的一锅还原比施勒-纳皮拉斯基反应,以及 Movassaghi 和希尔的现代版比施勒-纳皮拉斯基反应。几种天然产物的简明和高产合成进一步证明了基于Tf 2 O/TTBP 的方法的价值。