Synthesis of chiral β-chalcogen amine derivatives and Gram-positive bacteria activity
摘要:
Efficient ring opening reaction between aziridines and diphenyl dichalogenides using HCl, Zn degrees in ionic liquid is disclosed, affording chiral beta-chalcogen amines derivatives in good yields under mild reaction condition. The ionic liquid was further reused four times without the loss of its efficiency. The chiral chalcogenoamines showed antimicrobial activity against Gram-positive bacteria strains. (C) 2012 Elsevier Ltd. All rights reserved.
A series of N-carbamoyl aziridines has been treated by diethyl phosphite in the presence of n-BuLi to afford α-methylene phosphonate aziridines in modest yields. The study of the reaction's scopes and the analysis of byproducts indicated that this transformation proceeds via a unique mechanism. The mechanism that produces the α-methylene phosphonate relies on the use of BuLi, where both the lithium