Beilstein Journal of Organic Chemistry (Sep 2017)
1,3-Dibromo-5,5-dimethylhydantoin as promoter for glycosylations using thioglycosides
Abstract
1,3-Dibromo-5,5-dimethylhydantoin (DBDMH), an inexpensive, non-toxic and stable reagent, is a competent activator of thioglycosides for glycosidic bond formation. Excellent yields were obtained when triflic acid (TfOH) or trimethylsilyl trifluoromethanesulfonate (TMSOTf) were employed as co-promoters in solution or automated glycan assembly on solid phase.
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