A procedure is described foi the preparation of deuteriLed Raiicy niche1 for use in deuterating the triple bcnd selectively to the double bond with a view to obtaining dideutero- olefinic compounds. A comparative study of hydrogenation and deuteration has been made, and selective deuteration is shown to be as effective as hydrogenation. The composition of the crude products obtained by the selective deuteration of the triple bond has been ...
