Ring-Opening Insertion of a Substituted Dithiazole-3-thione into the Re−Re Bond in a Dirhenium Carbonyl Complex
作者:Richard D. Adams、Mingsheng Huang
DOI:10.1021/om960016r
日期:1996.4.16
Re(CO)4[μ-S2CNC(N(H)CO2Et)S]Re(CO)5 (2; 8% yield), Re(CO)4[μ-S2CNC(NHCO2Et)S]Re(CO)4 (3; 14% yield), and Re(CO)4[μ-S2CNHC(NCO2Et)S]Re(CO)4 (4; 27% yield) by the ring-opening insertion of 1 into the rhenium−rhenium bond of Re2(CO)9(NCMe). The sulfur−sulfur bond in 1 was also cleaved. Two mononuclear rhenium complexes, Re(CO)4[S2CNHCSNH(CO2Et)] (5; 14% yield) and Re(CO)4[SCNC(NHCO2Et)SCSN] (6; 6% yield), were also
配合物Re 2(CO)9(NCMe)与5-((乙氧羰基)氨基)-1,2,4-二噻唑-3-硫酮(1)的反应产生了一系列配合物Re(CO)4 [ μ-S 2 CNC(N(H)CO 2 ET)S]的Re(CO)5(2 ;产率8%)中,Re(CO)4 [μ-S 2 CNC(NHCO 2 ET)S]的Re(CO )4(3 ; 14%产率)和Re(CO)4 [μ-S 2 CNHC(NCO 2 ET)S]的Re(CO)4(4 ; 27%产率),通过开环插入1进入Re 2(CO)9(NCMe)的-bond键。中的硫-硫键1也被裂解。两种单核rh络合物,Re(CO)4 [S 2 CNHCSNH(CO 2 Et)](5 ; 14%产率)和Re(CO)4 [SCNC(NHCO 2 Et)SCSN](6 ; 6%产率),也进行了分离和表征。化合物3和4是在室温下平衡存在的异构体。吡啶的存在可催化3到4的异构化,反之亦然。该复合物的每2