Silica chloride nano particle (nano SiO2‐Cl), has been found to be heterogeneous catalyst for facile, simple and mild ringopening of epoxides with aromatic amines to afford β‐amino alcohols in dry CH2Cl2 at room temperature.
Computational Study-Led Organocatalyst Design: A Novel, Highly Active Urea-Based Catalyst for Addition Reactions to Epoxides
作者:Eimear M. Fleming、Cormac Quigley、Isabel Rozas、Stephen J. Connon
DOI:10.1021/jo702154m
日期:2008.2.1
catalyst for the promotion of additionreactions to epoxide electrophiles. Synthesis and evaluation of 6 revealed it to be a powerful catalyst for the addition of 1,2-dimethylindole to styrene oxide under conditions in which simple N,N-bis-aryl ureas and thioureas (including 1) are inactive. Subsequent studies determined 6 to be compatible with a range of indole and epoxide substrates (including (E)-stilbene