854428-57-2Relevant articles and documents
Dichloromethane as a chlorination reagent for α-bromocarbonyl compounds in the presence of a copper catalyst
Takeuchi, Kentaro,Ishida, Syo,Nishikata, Takashi
, p. 644 - 646 (2017)
We found that dichloromethane is a powerful chlorinating reagent for the congested 3° and 2° Csp3Br bond of α-bromocarbonyl amides, esters, and ketones. In the presence of an appropriate copper complex as a catalyst, the desired chlorination occurred within an hour. Control experiments revealed that in situ-generated CuCl2 is a key chlorinating agent that reacts with the 3° or 2° alkyl radicals generated by the reaction between an α-bromocarbonyl compound and a Cu(I) salt.