An O-phenylenebis( N′-methyloxamidate) cobalt(III) complex works as an efficient catalyst for the oxidation of propargylic alcohols to the corresponding α,β-acetylenic carbonyl compounds, in the presence of pivalaldehyde, under an atmospheric pressure of molecular oxygen.
Propargylic Oxidations Catalyzed by Dirhodium Caprolactamate in Water: Efficient Access to α,β-Acetylenic Ketones
作者:Emily C. McLaughlin、Michael P. Doyle
DOI:10.1021/jo800382p
日期:2008.6.1
hydroperoxide (T-HYDRO) is a highly effective catalytic oxidation protocol for the selective C−H oxidation of alkynes to propargylic ketones. The oxidation occurs readily in aqueous solvent under mild conditions with an inexpensive and easily handled oxidant. α,β-Acetylenic carbonyl compounds are formed in up to 80% isolated yield.