摘要
The regioselective and efficient bromination of primary hydroxyl groups in unprotected carbohydrates or glycosides is successfully achieved by using (chloro-phenylthio-methylene)dimethylammoniumchloride (CPMA) in the presence of tetrabutylammonium bromide (TBAB) in dry DMF.
The regioselective and efficient bromination of primary hydroxyl groups in unprotected carbohydrates or glycosides is successfully achieved by using (chloro-phenylthio-methylene)dimethylammoniumchloride (CPMA) in the presence of tetrabutylammonium bromide (TBAB) in dry DMF.
基金
Supporting information for this article is available on the WWW under http://dx.doi.org/10.1002/cjoc.201200211 or from the author.Acknowledgement The work was financially supported by the Fundamental Research Funds for the Lanzhou University (lzujbky-2011-136) and the Natural Science Foundation for Young Scientists in Gansu Province, China (Grant No. 1 107RJYA038).