ChemInform Abstract: Catalytic Aerobic Photooxidative Cleavage of Carbon—Carbon Triple Bonds Using Carbon Tetrabromide.

Abstract

Optimized conditions including water as an additive allow the cleavage of terminal and internal alkynes to carboxylic acids.

<strong>Efficient preparation of carboxylic acids from alkynes</strong>

“…Itoh reported the photooxidative aerobic cleavage of alkynes employing carbon tetrabromide as catalyst under photoirradiation from a 400 W mercury lamp. [5] Following with the experience of the group in the aerobic oxidative processes [6] we envisioned to perform the preparation of carboxylic acids from alkynes in presence of a nickel(II) salt and a 1,2,4-triazole derivative ligand as catalytic media under molecular oxygen atmosphere.…”