Synthesis and characterization of 1- and 2-(ω-alken-1-yl)indenes, their lithium salts and dichlorozirconium(IV) complexes
作者:Herbert Schumann、Dirk F. Karasiak、Stefan H. Mühle、Ronald L. Halterman、Walter Kaminsky、Ulrich Weingarten
DOI:10.1016/s0022-328x(99)00026-1
日期:1999.5
cross-coupling reactions of the appropriate Grignard reagents with 2-bromoindene or 2-bromo-4,7-dimethylindene. Alkenylation of 3-methylindenyl lithium and 2,4,7-trimethylindenyl lithium produced 1-(3-buten-1-yl)-3-methylindene (13) or 1-(3-buten-1-yl)-2,4,7-trimethylindene (14), respectively. The indene derivatives 1–14 react with n-butyl lithium in hexane yielding the corresponding lithium salts 1a–14a.
合成并表征了一系列新的1、2和多取代的茚基。茚基锂或4,7-二甲基茚基锂与烯基溴的反应生成1-和3-烯丙基(1),3-(3-丁-1-基)茚(2),3-(4-戊烯-1-基)茚(3),3-烯丙基-4,7-二甲基茚(4),3-(3-丁-1-基)-4,7-二甲基茚(5)以及3- (4-戊烯-1-基)-4,7-二甲基茚(6)。2-取代的茚基2-烯丙基(7),2-(3-丁烯-1-基)茚(8),2-(4-戊-1-基)茚(9),2-烯丙基-4, 7-二甲基茚(10),2-(3-丁-1-基)-4,7-二甲基茚(11)和2-(4-戊烯-1-基)-4,7-二甲基茚(12)是通过PdCl 2(DPPF)或NiCl 2(DPPE)催化的格氏试剂与2的交叉偶联反应制备的-溴茚或2-溴-4,7-二甲基茚。3-甲基茚基锂和2,4,7-三甲基茚基锂的烯基化反应生成了1-(3-buten-1-yl)-3-methylinde