公开(公告)号：US3511855A

公开(公告)日：1970-05-12

申请号：US3511855D

申请日：1967-03-14

Applicant: BASF AG

Inventor： MERGER FRANZ ,  KROEPER HUGO ,  PLATZ ROLF

IPC: C07D305/14 ,  C07D315/00 ,  C08G63/08 ,  C07D3/00

CPC classification number: C07D315/00 ,  C07D305/14 ,  C08G63/08

公开(公告)号：US3622648A

公开(公告)日：1971-11-23

申请号：US3622648D

申请日：1968-05-17

Applicant: BASF AG

Inventor： SCHLOEMER KARL ,  KROEPER HUGO ,  WEITZ HANS-MARTIN

IPC: C07C2/32 ,  C07C3/20

CPC classification number: C07C2/32 ,  C07C2523/04 ,  C07C2531/22 ,  C07C2531/26

Abstract: An improved process for the dimerization of olefins in the presence of alkali metal catalysts at 60* to 200* C. and at atmospheric pressure up to 300 atmospheres, catalysts being used which have been derived from an alkali metal and an organic compound containing one or more than one carbonyl group. The process is particularly suitable for effective and selective dimerization of propylene to 4-methylpentene-1. Some of the dimers obtained are suitable as antiknock additives and for the production of polymers.