Ti-Catalyzed Reformatsky-Type Coupling between α-Halo Ketones and Aldehydes
作者:Rosa E. Estévez、Miguel Paradas、Alba Millán、Tania Jiménez、Rafael Robles、Juan M. Cuerva、J. Enrique Oltra
DOI:10.1021/jo702189k
日期:2008.2.1
We describe the first Ti-catalyzed Reformatsky-type coupling between α-halo ketones and aldehydes. The reaction affords β-hydroxy ketones under mild, neutral conditions compatible with ketones and other electrophiles. The catalytic cycle possibly proceeds via bis(cyclopentadienyl)titanium enolates.