Indium(III) chloride-catalyzed thiolysis of meso-aziridines
摘要:
Indium(III) chloride efficiently catalyzed the thiol addition to meso-aziridines at very low substrate-catalyst ratios giving rise to 1,2-amino sulfides in excellent yields and complete diastereocontrol. (c) 2007 Elsevier Ltd. All rights reserved.
Zinc(<scp>II</scp>)-catalysed transformation of epoxides to aziridines
作者:Dorte Kühnau、Ib Thomsen、Karl Anker Jørgensen
DOI:10.1039/p19960001167
日期:——
The Lewis acid-catalysed transformation of epoxides to aziridines with iminophosphoranes as the nitrogen-fragment donor has been investigated. Of the Lewis acids tested, zinc(II) complexes had the best catalytic properties. The method works best for terminal and cyclic epoxides, internal epoxides being less reactive. Of the various iminophosphoranes employed N-(triphenylphosphoranylidene)-aniline and
Indium(III) chloride efficiently catalyzed the thiol addition to meso-aziridines at very low substrate-catalyst ratios giving rise to 1,2-amino sulfides in excellent yields and complete diastereocontrol. (c) 2007 Elsevier Ltd. All rights reserved.