Phosphonium salts of diacetoxyiodine(I) anions, new reagents for the iodoacetoxylation of alkenes

Abstract

Novel phosphonium salts of diacetoxyiodine(I) anions 1 add to alkenes like tri-O-benzyl galactal 8 affording 1-acetoxy-2-iodopyranoses 12a,b which can efficiently be employed in the synthesis of 2-deoxyglycoside 14.