Organocopper compounds reaction with amines

Copper tends to form more stable organocopper compounds with acetylene compounds than with aryl compounds. The synthetic reaction of acetylenic compounds with copper or copper salt, e.g., the Cadiot-Chodkiewics and Glaser reactions are well known. The Cadiot-Chodkiewics reaction is a reaction where I-bromoalkyne easily reacts with a terminal alkyne in the presence of a catalytic amount of a cuprous salt or amines to afford conjugate diacetylene compounds in high yield [43]. For example, polyacetylene is easily synthesized as shown in eq. (22.19) [43],... 

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