Oligosaccharide Analogues of Polysaccharides. Part 3. A New Protecting Group for Alkynes: Orthogonally Protected Dialkynes

Article abstract of DOI:10.1002/hlca.19950780319

Dialkynes of the type 3 (Scheme 1) are regioselectively deprotected by treating them either with base in a protic solvent (-> 4), or - after exposing the OH group - by catalytic amounts of base in an aprotic solvent (-> 5 and 8).The Me3Si-protected 12 (Sc