摘要
螺环[4.4]-1,3-壬二烯三羰基铁(1)与芳基锂试剂,ArLi(Ar=C_6H_5,o-,p-CH_3C_6H_4,p-CH_3OC_6H_4,p-ClC_6H_4,p-C_6H_5C_6H_4)在乙醚中于低温下反应,生成的酰羰基金属盐用Et_3OBF_4在水溶液中于0℃烷基化生成不稳定的异构化的螺环[4.4]-1,3-壬二烯(二羰基)[乙氧基(芳基)卡宾]铁配合物(2—7)。这些配合物与膦在石油醚中于低温下加成反应,转变为稳定的膦加成物(8—12)。12的结构经单晶X射线结构分析进一步证实。
Reaction of spiro [4.4] nona-1, 3-diene (tricarbonyl) iron (1) with aryllithium reagents, ArLi (Ar=O_6H_5, o-, p-CH_3C_6H_4, p-CH_3OC_6H_4, p-ClC_6H_4, P-C_6H_5C_6H_4), in ether at low temperature, followed by the alkylation of the acylmetallate formed with Et_3OBF_4 in aqueous solution at 0℃ gave the unstable isomerized spiro [4.4] nona-1, 3-diene (dicarbonyl) [ethoxy (aryl) carbene] iron complexes 2—7, which were transformed into the stable chelated allyliron phosphine adducts 8—12 by the addition reaction with phosphines in petroleum ether at low temperature.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1992年第4期409-416,共8页
Acta Chimica Sinica
基金
国家自然科学基金资助的课题
