公开(公告)号：US3594434A

公开(公告)日：1971-07-20

申请号：US3594434D

申请日：1968-04-03

Applicant: STUDIENGESELLSCHAFT KOHLE MBH

Inventor： WILKE GUNTHER ,  HEIMBACH PAUL ,  BRENNER WOLF-BERND

IPC: C07C2/44 ,  B01J31/00 ,  C07C1/00 ,  C07C2/46 ,  C07C13/06 ,  C07C67/00 ,  C07C3/10

CPC classification number: C07C13/06 ,  C07C2/465 ,  C07C2531/12 ,  C07C2531/16 ,  C07C2601/04

Abstract: A PROCESS FOR THE CATALYTIC DIMERISATION OF 1,3-DIOLEFINES IS DISCLOSED. PREFERRED DIOLEFINES ARE BUTADIENE, ISOPRENE AND PIPERYLENE. THE CATALYSTS USED ARE ONES FORMED BY MIXING A REDUCIBLE NICKEL COMPOUND AND A METAL HAVING A REDUCING ACTION WITH RESPECT TO THE REDUCIBLE NICKEL COMPOUND OR A HALOGEN-FREE ORGANOMETALLIC COMPOUND, OF WHICH METAL ALKYLS, METAL ARYLS OR METAL HYDRIDES ARE EXAMPLES, AND AN ELECTRON DONOR. THEY MAY ALSO BE FORMED BY MIXING A NICKEL COMPLEX COMPOUND WHICH CONTAINS O-VALENT NICKEL WITH AN ELECTRON DONOR. THE ELECTRON DONOR MAY BE AN ESTER OF A PHOSPHOROUS ACID OR A DIOLEFINE. THE PROCESS IS CARRIED OUT WITH INCOMPLETE CONVERSION OF THE 1,3-DIOLEFINE.