Stereoselective
<i>O</i>
‐Glycosylations by Pyrylium Salt Organocatalysis**
作者:Michael Martin Nielsen、Thomas Holmstrøm、Christian Marcus Pedersen
DOI:10.1002/anie.202115394
日期:2022.2
A glycosylation method for non-specialists: Commercially available pyrylium salts catalyze stereoselectiveglycosylation reactions with trichloroacetimidate electrophiles. A wide range of phenolic nucleophiles are compatible with the procedure. The standard conditions involve mixing three components at ambient conditions and proceed with minimal formation of undesired by-products.