inecarboxamide provides [N-(2,6-diisopropyl)phenyl-2-pyridinecarboxamidatotris(pentafluorophenyl)borate-κ2N,N]Ni(η3-CH2CMeCH2) (4) in 92% yield. The solid-statestructures of 3 and 4 were determined by X-ray diffraction techniques. The intramolecular metrical parameters are consistent with substantial partial positive charge at the nickel atom. Deprotonation of N-(2,6-diisopropyl)phenyl-2-pyridinecarboxamide
develop a new “cobalt(II)/organic oxidant” catalytic system for the selective activation of 1°, 2°, and 3° C(sp3)–H bonds to construct C–N and C–O bonds, respectively. The method highlights the use of an organic compound (TsNHOPiv or its analogues) as an emerging oxidant and thus provides a flexible strategy for the preparation of indoline and benzoxazine derivatives. Attractive advantages of this cobalt
Synthesis of Stable Gold(III) Pincer Complexes with Anionic Heteroatom Donors
作者:Miles W. Johnson、Antonio G. DiPasquale、Robert G. Bergman、F. Dean Toste
DOI:10.1021/om500663m
日期:2014.8.25
A series of gold(III) complexes supported by pyridine-based bis(amidate), bis(carboxylate), and bis(iminothiolate) substituents is reported. These compounds represent rare examples of pincer-ligated gold(III) centers with multiple anionic heteroaom donors. Reactivity and electrochemical studies demonstrate the stability of these compounds and the marked difference in reduction potentials with varying