Synthesis, characterization, and catalytic properties of bis[alkylindenyl]-, bis[alkenylindenyl]- and [alkenylindenyl(cyclopentadienyl)]zirconium dichloride complexes
作者:Herbert Schumann、Dirk F Karasiak、Stefan H Mühle、Walter Kaminsky、Ulrich Weingarten
DOI:10.1016/s0022-328x(01)00834-8
日期:2001.11
the lithium salts 1a–3a. The reactions of 1a–3a and of [1-(4-pentene-1-yl)indenyl]lithium (4a) with zirconiumtetrachloride produce the complexes bis[1-butyl-4,7-dimethylindenyl]- (1b), bis[1-(2-propene-1-yl)-2,4,7-trimethyl-indenyl]- (2b), bis[1-(3-methyl-2-butene-1-yl)-2,4,7-trimethylindenyl]- (3b) or bis[1-(4-pentene-1-yl)indenyl]zirconium dichloride (4b). The reaction of cyclopentadienylzirconium
4,7-二甲基茚基锂或2,4,7-三甲基茚基锂与1-溴丁烷,1-氯-2-丙烯或1-溴-3-甲基-2-丁烯反应生成3-丁基-4,7 -二甲基-1 H-茚(1),3-(2-丙烯-1-基)-2,4,7-三甲基-1 H-茚(2)或3-(3-甲基-2-丁烯) -1-基)-2,4,7-三甲基-1 H-茚(3)。去质子化1 - 3与Ñ丁基锂产生了锂盐1A - 3a中。的反应1A -图3a [1-(4-戊烯-1-基)茚基]锂(和4a中)与四氯化锆生成双[1-丁基-4,7-二甲基茚基]-(1b),双[1-(2-丙烯-1-基)-2,4,7-三甲基茚基]-(2b),双[1-(3-甲基-2-丁烯-1-基)-2,4,7-三甲基茚基]-(3b)或双[1-(4-戊烯-1-基)茚基]二氯化锆(4b)。环戊二烯基三氯化锆与[2-(3-丁烯-1-基)-4,7-二甲基茚基]锂或[2-(4-戊烯-1-基)-4,7-二甲基茚基]锂