Selective reduction of acyl aziridines to Mannich bases using silyllithium reagents
摘要:
Mannich bases are prepared from the selective alpha-reduction of acyl aziridines using silyllithium reagents. The reaction proceeds via an aziridine ring-opening assisted Brook rearrangement. (C) 2013 Elsevier Ltd. All rights reserved.
已经开发了由烯烃的氨基卤化反应生成的1,2-邻位卤胺的尿素催化叠氮化。通过在空气中于室温下简单研磨底物,K 2 CO 3和催化量的尿素的固体混合物来进行这种快速而简单的方法。该反应提供了用于定量制备烯烃的大量氨基卤代衍生物(包括α,β-不饱和酮,α,β-不饱和酯和简单烯烃)中的氮丙啶的方案。对于该反应,已经提出了可能涉及氢键促进去质子化的机理。
A Rapid and Simple Method for Quantitative Aziridination from Aminobrominated Derivatives of Olefins under Solvent-free and Mild Conditions
作者:Junfa Wei、Zhanguo Chen、Yanni Gao、Peng Zhang、Chuanning Wang、Pengfei Zhao、Yun Wang、Xianying Shi
DOI:10.1002/cjoc.201100176
日期:2012.2
urea‐catalyzed aziridination of 1,2‐vicinal haloamines derived from aminohalogenation of olefins has been developed. This rapid and simplemethod was carried out by simply grinding the solid mixture of the substrate, K2CO3 and catalytic amount of urea at room temperature in air. The reaction provides a protocol for quantitative preparation of aziridines in a large scope of aminohalogenated derivatives of olefins
已经开发了由烯烃的氨基卤化反应生成的1,2-邻位卤胺的尿素催化叠氮化。通过在空气中于室温下简单研磨底物,K 2 CO 3和催化量的尿素的固体混合物来进行这种快速而简单的方法。该反应提供了用于定量制备烯烃的大量氨基卤代衍生物(包括α,β-不饱和酮,α,β-不饱和酯和简单烯烃)中的氮丙啶的方案。对于该反应,已经提出了可能涉及氢键促进去质子化的机理。
Selective reduction of acyl aziridines to Mannich bases using silyllithium reagents
作者:Amanda L. Davis、Arthur A. Korous、Aaron M. Hartel
DOI:10.1016/j.tetlet.2013.05.005
日期:2013.7
Mannich bases are prepared from the selective alpha-reduction of acyl aziridines using silyllithium reagents. The reaction proceeds via an aziridine ring-opening assisted Brook rearrangement. (C) 2013 Elsevier Ltd. All rights reserved.