Convenient synthesis of mixed S–Se-linked pseudodisaccharides by sulfur and selenium exchange
2022
Rana, Abhijit | Kundu, Monalisa | Miśra, Anupa Kumāra
A one-pot reaction methodology has been developed for the preparation of mixed S–Se-linked pseudodisaccharides by the treatment of glycosyl halides with a combination sodium sulfide nonahydrate (Na₂S⋅9H₂O) and carbon disulfide (CS₂) in the presence of alkyl and glycosyl diselenides. The reaction condition is fast, odourless, high yielding and suitable for scale-up synthesis. Exclusive formation of anomerically beta-linked products was obtained from anomeric glycosyl bromides.
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