一、前言 烯烃-金属-卡宾络合物是烯烃易位,链烯烃环化和烯烃Ziegler-Natta聚合中重要的中间产物,Casey等人报道了η~2-烯烃钨卡宾络合物的合成及结构。我们用肉桂醛缩苯胺三羰基铁[C_6H_5CH=CH-CH=NC_6H_5]Fe(CO)_3(I)与芳基锂反应,产物用(C_2H_5)_3OBF_4烷基化,得到η~4-烯烃卡宾铁的络合物。此络合物在0℃的甲苯饱和溶液,在-35℃左右冷却数天,即得到标题化合物的桔红色柱状单晶体。 I. INTRODUCTION Olefin-metal-carbene complexes are important intermediates in olefin metathesis, alkene cyclization and olefin Ziegler-Natta polymerization. Casey et al. Reported the synthesis of n-2-ene tungsten carbene complexes structure. We use cinnamaldehyde anilide tricarbonyl iron [C_6H_5CH = CH-CH = NC_6H_5] Fe (CO) _3 (I) and aryl lithium reaction, the product was alkylated with (C_2H_5) _3OBF_4 to obtain η ~ 4- Complex. The complex was saturated with toluene at 0 ° C and cooled at -35 ° C for several days to give the title compound as orange-red columnar crystals.