Scheme 12.

Ruthenium(0) catalyzed C-C coupling of diols with alkynes via transfer hydrogenation.a
aYields are of material isolated by flash chromatography on silica gel. C10H15CO2H = 1-adamantanecarboxylic acid. PCy3 = tricyclohexylphosphine.

Ruthenium(0) catalyzed C-C coupling of diols with alkynes via transfer hydrogenation.a
aYields are of material isolated by flash chromatography on silica gel. C10H15CO2H = 1-adamantanecarboxylic acid. PCy3 = tricyclohexylphosphine.