Novel Reductive Cleavage Reaction of <i>α</i>-Halo Epoxides with SMI<sub>2</sub>: Synthesis of Cyclopropanols
作者:Heui Sul Park、So Hee Chung、Yong Hae Kim
DOI:10.1055/s-1998-1889
日期:1998.10
Aryl substituted α-halo epoxide reacted with SmI2 to give the cyclopropanols in the presence of HMPA, while allyl alcohols were yielded in the absence of HMPA.
Selective reductive cleavage of 2,3-epoxybromides by the InCl3–NaBH4 reagent system
作者:Brindaban C. Ranu、Subhash Banerjee、Arijit Das
DOI:10.1016/j.tetlet.2004.09.120
日期:2004.11
A combination of sodium borohydride and a catalytic amount of indium(Ill) chloride in acetonitrile reduces 2,3-epoxy-bromides to the corresponding allylic alcohols in good yields involving reduction of the bromo moiety followed by selective C-O bond cleavage through a radical process. Several aromatic, cyclic and open-chain bromoepoxides successfully participated in this reaction. (C) 2004 Elsevier Ltd. All rights reserved.