Organocatalysis as a Safe Practical Method for the Stereospecific Dibromination of Unsaturated Compounds
作者:Gloria Hernández-Torres、Bin Tan、Carlos F. Barbas
DOI:10.1021/ol300456x
日期:2012.4.6
Organocatalytic stereospecific dibromination of a wide variety of functionalized alkenes was achieved using a stable, inexpensive halogen source, 1,3-dibromo 5,5-dimethylhydantoin, and a simple thiourea catalyst at room temperature. The presence of a tertiary amine enhanced the rate of the dibromination reaction, and yields were good in various solvents, including aqueous solvents. The procedure was