Asymmetric Hydroformylation of <i>Z</i>-Enamides and Enol Esters with Rhodium-Bisdiazaphos Catalysts
作者:M. Leigh Abrams、Floriana Foarta、Clark R. Landis
DOI:10.1021/ja507701k
日期:2014.10.15
Asymmetric hydroformylation (AHF) of Z-enamides and Z-enol esters provides chiral, alpha-functionalized aldehydes with high selectivity and atom economy. Rh-bisdiazaphospholane catalysts enable hydroformylation of these challenging disubstituted substrates under mild reaction conditions and low catalyst loadings. The synthesis of a protected analog of l-DOPA demonstrates the utility of AHF for enantioselective