A Rapid, Easy, and Regiospecific Synthesis of α,α,α′-Trihalo Ketones
作者:José Barluenga、Luján Llavona、Miguel Yus、José M. Concellón
DOI:10.1055/s-1990-27076
日期:——
The reaction of ethyl α-chloro- or α-bromocarboxylates 1 with in situ generated dihalomethyllithium (1 : 2 molar ratio) at - 78°C leads, after hydrolysis, to the corresponding α,α,α′-trihalo ketones 4.