Illustrated Glossary of Organic Chemistry

Cuprate: (1) An organometallic compound of general formula R2Cu- Li+, featuring two carbon-metal bonds. Usually employed as a nucleophile. Also called a Gilman reagent. Sometimes abbreviated as R2CuLi.




Lithium dimethyl cuprate
(CH3)2CuLi
   
Lithium diphenyl cuprate
Ph2CuLi
Common cuprates.

(2) Any compound containing a copper anion.