Diine

Diynes are organic compounds that have two triple bonds . The name is derived from Di for two and the ending -in for alkynes , the main class of organic compounds with triple bonds. A subgroup are the alkadiynes , in which the basic structure is derived from the alkanes, without heteroatoms or other multiple bonds .

General structural formula of a diyne (n = 0, 1, 2, ...)

Manufacturing

Symmetrical conjugated diynes can be obtained by a Glaser coupling , unsymmetrical diynes by a Cadiot-Chodkiewicz coupling . A terminal alkyne and a bromoalkyne are linked to one another in a cross-coupling, catalyzed by copper salts .

literature

• R. Brückner: Reaction Mechanisms , 3rd edition, Spektrum Akademischer Verlag, Munich 2004, ISBN 3-8274-1579-9 , pp. 693 and 717.