Novel ring-coupled reactions of bis(cycloheptatriene)tris(tricarbonyliron) with aryllithium reagents
作者:Bin Zhu、Ruitao Wang、Jie Sun、Jiabi Chen
DOI:10.1039/a906350a
日期:——
ligands to afford five novel isomerized (bicycloheptatriene)bis(tricarbonyliron)dicarbonyl[ethoxy(aryl)carbene]iron complexes [(CO)3Fe(C7H7)}2(CO)2FeC(OC2H5)C6H4R] (2, R = H; 3, R = o-CH3; 4, R = m-CH3; 5, R = p-CH3; 6, R = p-OCH3), of which the structure of 2 has been established by a single-crystal X-ray diffraction study. The reaction of complexes 2 or 5 with PPh3 gave the chelated η3-allyliron phosphine
双(环庚三烯)三(tricarbonyliron),[(C的反应7 ħ 8)2 的Fe(CO)3 } 3 ] 1,用芳基锂试剂RC 6 H ^ 4李(R = H,ö - ,米- ,p -CH 3,p -OCH 3),在乙醚中,在低温下得到酰基金属酸酯中间体,该中间体在用Et 3 OBF 4烷基化后在0°C的水溶液中导致两个环庚三烯配体偶联,得到五个新型的异构化的(双环庚三烯)双(三羰基铁)二羰基[乙氧基(芳基)碳烯]铁配合物[(CO)3 Fe(C 7 H 7) } 2(CO)2 FEC(OC 2 H ^ 5)C 6 H ^ 4 R](2,R = H; 3,R = ö -CH 3 ; 4,R = 米-CH 3 ; 5,R = p - CH 3; 6,R = p -OCH 3),其中2的结构是通过单晶X射线衍射研究确定的。配合物2的5 PPH反应或3得到螯合η 3 -allyliron膦加成物[(CO)3的Fe(C