文献类型：专利

英文题名：New ethylidene-bridged indene-fluorene-metal complex used as catalyst in propylene oligomerization for producing propylene oligomer with terminal allyl groups

作者：ZHANG B;ZHANG L;MA H

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN104231003-A

申请日：2014-05-09

公开日：2014-12-24

语种：英文

收录：DERWENT

摘要：NOVELTY - An ethylidene-bridged indene-fluorene-metal complex (I) is new. USE - New ethylidene-bridged indene-fluorene-metal complex is used as catalyst in propylene oligomerization for producing propylene oligomer with terminal allyl groups (all claimed). ADVANTAGE - The ethylidene-bridged indene-fluorene-metal complex has high catalytic activity and high selectivity with respect to propylene oligomer, and is prepared under mild reaction condition. DETAILED DESCRIPTION - An ethylidene-bridged indene-fluorene-metal complex of formula (I) is new. n=0, 1 or 2; M=Zr or Hf; R1-R7=H or 1-6C linear or branched alkyl;and or R2+R3,R3+R4,R4+R5,R6+R7=5-14C five-membered ring, six-membered ring or seven-membered ring. INDEPENDENT CLAIMS are included for the following: (1) preparation of complex (I); and (2) usage method of complex (I) in oligomerization of propylene, which involves performing oligomerization of propylene using complex (I) as main catalyst and alkylaluminoxane as cocatalyst, in organic medium (b) at 0-160 degrees C and 0.1-1 MPa. The molar ratio of main catalyst and cocatalyst is 300-10000:1.