Synthesis of tert-Butyl 1,3-Diaryl-3-oxopropylcarbamates by a Regiocontrolled Reduction of Ketoaziridines
摘要:
A new, convenient approach for the reductive ring opening of N-H ketoaziridines is described. Treatment of N-H ketoaziridines with di-tert-butyl dicarbonate [(Boc)(2)O] in the presence of sodium iodide and nickel(II) chloride results in the corresponding tert-butyl 1,3-diaryl-3-oxopropylcarbamates by a regiocontrolled reaction. The structure of the regioisomeric product was confirmed by X-ray crystal structure analysis.
Copper-catalyzed cascade approach to 1,3-diazabicyclo[3.1.0]hex-3-enes from aziridines and ethyl diazoacetate
作者:Yuanxun Zhu、Shaoyin Wang、Shan Wen、Ping Lu、Yanguang Wang
DOI:10.1016/j.tetlet.2010.07.026
日期:2010.9
An efficient and general synthesis of 1,3-diazabicyclo[3.1.0]hex-3-enes via the copper-catalyzed cascade reaction of aziridines with ethyl diazoacetate is described.
Synthesis of Highly Substituted 2-Imidazolines through a Three-Component Coupling Reaction
作者:Yong-Min Liang、Yao Han、Yong-Xin Xie、Lian-Biao Zhao、Ming-Jin Fan
DOI:10.1055/s-2007-1000818
日期:2008.1
A simple strategy for the synthesis of highly substituted 2-imidazolines starting from terminal alkynes, sulfonyl azides, and N-unsubstituted aziridines via two steps with high regioselectivity is described.