Efficient One-Pot Synthesis of Unsymmetrical Gold(I) N-Heterocyclic Carbene Complexes and Their Use as Catalysts
作者:A. Stephen K. Hashmi、Yang Yu、Frank Rominger
DOI:10.1021/om2008919
日期:2012.2.13
Eleven different gold(I) complexes of new NHC ligands were prepared in excellent yield, demonstrating the versatility of the new route to NHC complexes. While the influence of electronically different ligands on the synthesis of the catalysts was small, the catalytic activities of the products differed significantly.
作者:James D.E.T Wilton-Ely、Annette Schier、Norbert W Mitzel、Stefan Nogai、Hubert Schmidbaur
DOI:10.1016/s0022-328x(01)01284-0
日期:2002.2
of the gold(I) halide complexes LAuCl (where L=PMe3, PEt3, PPh3, PPh2Py) and PP(AuCl)2 [where PP=bis(diphenylphosphino)methane; 1,1′-bis(diphenylphosphino)ferrocene] with 4-amino-2-pyrimidine-thiol (2-SPym-4-NH2) (one or two equivalents as required) in the presence of sodium methoxide provides the corresponding (phosphine)gold(I) thiolate complexes LAu(2-SPym-4-NH2) and PP[Au(2-SPym-4-NH2)]2, respectively
A complex of gold(I) benzenethiolate with isocyanide: synthesis and crystal and molecular structures
作者:V. P. Dyadchenko、N. M. Belov、M. A. Dyadchenko、Yu. L. Slovokhotov、A. M. Banaru、D. A. Lemenovskii
DOI:10.1007/s11172-010-0143-y
日期:2010.3
Abstract2,6-Dimethylphenyl isocyanide forms complexes with gold( I) chloride (complex 4) and gold(I) benzenethiolate (complex 5) but forms no stable complexes with gold alkanethiolates. A reaction of complex 5 with tetramethylthiuram disulfide yields gold(I) dimethyldithiocar-bamate. Stable gold(III) derivatives cannot be obtained in such a way. Shortened intermolecular Au...Au contacts in complexes
An effective method using gold(I) isocyanide complexes as catalysts for the transformation of various alkynes to the corresponding ketones is successfully developed. The hydration process proceeds smoothly at roomtemperature with quite high yield (up to 99%). The catalytic center is the isocyanide-Au(I)+ cation. Further theoretical research reveals a direct hydration mechanism by H2O, and the rate-determining
Addition of N-nucleophiles to gold(<scp>iii</scp>)-bound isocyanides leading to short-lived gold(<scp>iii</scp>) acyclic diaminocarbene complexes
作者:Tatyana B. Anisimova、Mikhail A. Kinzhalov、M. Fátima C. Guedes da Silva、Alexander S. Novikov、Vadim Yu. Kukushkin、Armando J. L. Pombeiro、Konstantin V. Luzyanin
DOI:10.1039/c7nj00529f
日期:——
of [AuCl3(CNR1)] (R1 = Xyl, Cy, (S)-CHMePh) with amines unexpectedly proceeds via the redox pathway giving gold(I)–isocyanides and imines, while the addition of benzophenone hydrazone to the isocyanide ligand in [AuCl3(CNR1)] at RT leads to short-lived gold(III) acyclic diaminocarbene complexes [AuCl3C(NHNCPh2)NHR1}].