A "poisoned catalyst" consisting of palladium and quinoline called Lindlar's catalyst can be used to reduce this to alkenes.
This functional group is found on the other side of the molecule from a phenyl in parglyine. Disiamylboranes undergo addition reactions with compounds containing this structure. Sodium amide is used to deprotonate these compounds. A 1,3 dipolar cycloaddition between an azide and this functional group yields a 1,2,3-triazole in a reaction named for Huisgen. The Sonogashira coupling uses a palladium catalyst in order to link this to a vinyl halide. This functional group is synthesized from aldehydes in the Corey-Fuchs reaction. A "poisoned catalyst" consisting of palladium and quinoline called Lindlar's catalyst can be used to reduce this to alkenes. For 10 points, name this class of compounds characterized by a carbon-hydrogen triple bond.
This functional group is found on the other side of the molecule from a phenyl in parglyine.
alkynes