Kinetic and Thermodynamic Aspects of the Regioselective Addition of Bifunctional Hydroxylaminooxime-type HO-Nucleophiles to Pt-Complexed Nitriles
作者:Konstantin V. Luzyanin、Vadim Yu. Kukushkin、Maxim L. Kuznetsov、Alexander D. Ryabov、Mathea Sophia Galanski、Matti Haukka、Eugene V. Tretyakov、Victor I. Ovcharenko、Maximilian N. Kopylovich、Armando J. L. Pombeiro
DOI:10.1021/ic051909r
日期:2006.3.6
The coupling between coordinated propiononitriles in trans-[PtCln(EtCN)2] (n = 2, 4) and the 1,2-hydroxylaminooximes HON(H)CMe2C(R)=NOH (R = Ph 1, Me 2) proceeds smoothly in CHCl(3) at ca. 40-45 degrees C and gives trans-[PtClnNH=C(Et)ON(H)CMe2C(R)=NOH}2] (n = 2, R = Ph 5, Me 6; n = 4, R = Ph 7, Me 8) in 80-85% isolated yields. The reaction is highly regioselective, and both spectroscopic (IR; FAB+-MS;
反式-[PtCln(EtCN)2] (n = 2, 4) 中的配位丙腈与 1,2-羟基氨基肟 HON(H)CMe2C(R)=NOH (R = Ph 1, Me 2) 之间的偶联进展顺利大约在 CHCl(3) 中。40-45 摄氏度并给出反式-[PtClnNH=C(Et)ON(H)CMe2C(R)=NOH}2] (n = 2, R = Ph 5, Me 6; n = 4, R = Ph 7, Me 8),分离产率为 80-85%。该反应具有高度区域选择性,并且具有光谱(IR;FAB+-MS;1D 1H、13C1H} 和 195Pt NMR;和 2D 1H、13C HMQC、1H、13C HMBC 和 1H、15N HMQC NMR)和 X- 6-8 的射线数据表明,加成仅通过 1,2-羟氨基肟物质的羟胺部分进行;还证实了远离亲核试剂的肟基团的存在。6 在空气中加热会导致其转化为不寻常的亚硝基烷烃络合物