摘要:
[Re(CO)4 {R'NC(R)NR'}]配合物(I; R = Me或Ph; R'= Ph或C 6 H 4 Me- p),其中包含离域的双齿NN'螯合a基- (i)[{Re(CO)4 X} 2 ](X = Cl或Br)与R'N(Li)C(R)NR',(ii)[Re(CO )4 {R'NC(R)NHR'} X]与LiBu n,(iii)[Re 2(CO)10 ]与R'NHC(R)NR'和(iv)通过[Re(CO )4 {CON(R')C(R)NR'}]个络合物。三苯膦将(I)中的CO置换为[Re(CO)3(PPh3){R'NC(R)NR'}](II),可通过[Re(CO) 4 L'Br](L'= PPh 3或AsPh 3)与am的回流反应更方便地制备甲苯。当使用NNN'-三取代的idine时,该反应在中间体化合物[Re(CO) 3(PPh 3){R'NC(R)N(Me)R'} Br]处终止