Reactions of coordinated ligands VII. Reactions of (CO)5MoPPh2Cl and cis-(CO)4Mo(PPh2Cl)2 with selected diamines and amino alcohols. Synthesis of cis-(CO)4M(PPh2OCH2CH2NMe2) (M = Cr, Mo, W)
作者:Gary M. Gray、Charles S. Kraihanzel
DOI:10.1016/s0022-328x(00)90534-5
日期:1980.3
chromium and tungsten analogs of the Mo chelate complex have been made by photochemical reaction between the hexa carbonyls and the uncomplexed (P,N) ligand. A combination of chloride displacemetn and photochemical chelation were used to obtain cis-(CO)4Mo(PPh2NHCH2CH2NMe2). With cis-(CO)4Mo(PPh2Cl)2, HOCH2CH2NME2 gives cis-(CO)4Mo(PPh2OCH2CH2NMe2)(PPh2OH) and not the expected disubstituted product
N,N-二甲基乙醇胺与(CO)5 Mo(PPh 2 Cl)反应生成(CO)5 Mo(PPh 2 OCH 2 CH 2 NMe 2),已被表征为BF 3加合物,并通过加热形成混合物供体(P,N)螯合物(CO)4 Mo(PPh 2 OCH 2 CH 2 NMe 2)。Mo螯合物的铬和钨类似物是通过六羰基与未络合的(P,N)配体之间的光化学反应制得的。结合使用氯置换和光化学螯合获得顺式-(CO)4 Mo(PPh 2 NHCH 2 CH 2 NMe 2)。在具有顺式-(CO)4 Mo(PPh 2 Cl)2的情况下,HOCH 2 CH 2 NME 2产生顺式-(CO)4 Mo(PPh 2 OCH 2 CH 2 NMe 2)(PPh 2 OH),而不是预期的二取代产物。乙二胺,N-甲基乙二胺和N,N-二甲基乙二胺与顺式反应-(CO)4 Mo(PPh 2 Cl)2以简单的方式产生顺式-(CO)4 Mo(PPh