New Ylide−, Alkynyl−, and Mixed Alkynyl/Ylide−Gold(I) Complexes
作者:José Vicente、Anshu R. Singhal、Peter G. Jones
DOI:10.1021/om020753p
日期:2002.12.1
ylides in equimolar amounts give the complexes [AuCl(ylide)]Xn (n = 0, ylide = C(PPh3)2 (1a), 4-MeC6H4SO2CHPPh3 (1b); n = 1, X = TfO, ylide = [HC(PPh3)2]+ (2)) and [(AuCl)2μ-C(PPh3)2}] (3) when using a 2:1 molar ratio. The complex 1a reacts (i) with Tl(acac) to give [Au(acac)C(PPh3)2}] (4) and (ii) with terminal alkynes (with or without added Et3N) to give [HC(PPh3)2][Au(C⋮CC6H4R-4)Cl] (R = H (5a), CN
AuCl(tht)(tht =四氢噻吩)与各种摩尔等摩尔量的反应生成络合物[AuCl(ylide)] X n(n = 0,ylide = C(PPh 3)2(1a),4-MeC 6 H 4 SO 2 CHPPh 3(1b); n = 1,X = TfO,ylide = [HC(PPh 3)2 ] +(2))和[(AuCl)2 μ-C(PPh 3)2 }](3)当使用2:1的摩尔比时。复数1a(i)与Tl(acac)反应生成[Au(acac)C(PPh 3)2 }](4)和(ii)与末端炔烃(添加或不添加Et 3 N)反应生成[HC(PPh 3)2 ] [Au(C⋮CC 6 H 4 R-4)Cl](R = H(5a),CN(5b),OMe(5c),NO 2(5d))代替所需的络合物[Au (C⋮CC 6 H 4 R-4)C PPh 3 } 2 }]。这些络合物(R = H(6a),CN(6b),OMe(6c),NO