Reaction of Polychloroacetamides with Amines: Reductive Dechlorination and Aziridine Formation
摘要:
Treatment of trichloroacetamides with amines undergoes reductive dechlorination via single-electron transfer process to afford dichloroacetamides in good yields. Reaction of trichloro- and dichloroacetamides with DBU provides a new synthetic method of aziridinopyrrolidines.
Reaction of Polychloroacetamides with Amines: Reductive Dechlorination and Aziridine Formation
摘要:
Treatment of trichloroacetamides with amines undergoes reductive dechlorination via single-electron transfer process to afford dichloroacetamides in good yields. Reaction of trichloro- and dichloroacetamides with DBU provides a new synthetic method of aziridinopyrrolidines.
Controlling Selectivity in the Synthesis of
<i>Z</i>
‐α,β‐Unsaturated Amidines by Tuning the
<i>N</i>
‐Sulfonyl Group in a Rhodium(II) Catalyzed 1,2‐H Shift
作者:Matthew L. Martin、Alistair Boyer
DOI:10.1002/ejoc.202101235
日期:2021.11.22
α,β-Unsaturated amidines can be synthesized in high yield by rhodium(II) carboxylate catalyzed 1,2-H shift following denitrogenation of α-diazo amidines. Using a large carboxylate rhodium(II) ligand and an electron-poor N-sulfonyl group results in exclusive Z-selectivity and excellent yield by suppressing side reactions involving intramolecular oxygen transfer.
α-重氮脒脱氮后,羧酸铑(II)催化1,2-H转变,可以高产率合成α,β-不饱和脒。通过抑制涉及分子内氧转移的副反应,使用大的羧酸铑 (II) 配体和缺电子的N-磺酰基可实现独特的Z-选择性和优异的产率。
Reaction of Polychloroacetamides with Amines: Reductive Dechlorination and Aziridine Formation
Treatment of trichloroacetamides with amines undergoes reductive dechlorination via single-electron transfer process to afford dichloroacetamides in good yields. Reaction of trichloro- and dichloroacetamides with DBU provides a new synthetic method of aziridinopyrrolidines.