Sept., 1936 REACTION OF METAL HALIDES WITH ACETYLENIC GRIGNARD REAGENTS ... [CONTRIBUTION FROM THE DEPARTMENT OF CHEMISTRY, UNIVERSITY OF NOTRE DAME] The Reaction of Metal Halides with Acetylenic Grignard Reagents ... BY JAMES P. DANEHY AND J. A. NIEUWLAND ... That particular type of reaction between a Grignard reagent and a metal salt which involves the reduction of the salt and the coupling of the organic radicals ...