C4H2S–C4H3S] 5. By-products obtained from heteronuclear biscarbene reactions contain the former diketo compound (or a derivative) as spacer between two metal carbonyl fragments and have the general formula [MLnC(OEt)C4H2S–C4H2SCR–CR′C4H2S–C4H2SC(OEt)MLn] (5a: [M] = Cr(CO)5, R = OH, R′ = OEt; 5b: [M] = W(CO)5, R = R′ = O; 5c: [M] = Mo(CO)5, R = R′ = O). Reaction of 1d, 1e and 1f with hex-3-yne resulted
                                    摘要研究了具有联
噻吩间隔基的同核和异核双碳烯配合物的合成和结构。通过联
噻吩的
锂化,然后使用
金属前体MnMeCp(CO)3,W(CO)6,Mo(CO)6和Cr(CO)6的组合进行
金属化来合成配合物,然后将反应用四
氟硼酸三乙基氧鎓淬灭。这种经典的费歇尔方法产生了单碳烯络合物,[MLnC(OEt)
C4H2S–C4H3S],[[MLn] = Cr(CO)5 1a,W(CO)5 2a或MnMeCp(CO)2 3a),同核双碳烯络合物,[ MLnC(OEt)     –     C(OEt)MLn],[[MLn] = Cr(CO)5 1b,W(CO)5 2b或MnMeCp(CO)2 3b)和杂核双卡宾配合物[MLnC(OEt)      –     C(OEt)M'Ln](1d:[MLn] = Cr(CO)5且[M'Ln] = W(CO)5; 1e:[MLn] = MnMeCp(CO)2和[M'Ln ]