Axial Coordination of NHC Ligands on Dirhodium(II) Complexes: Generation of a New Family of Catalysts
作者:Alexandre F. Trindade、Pedro M. P. Gois、Luís F. Veiros、Vânia André、M. Teresa Duarte、Carlos A. M. Afonso、Stephen Caddick、F. Geoffrey N. Cloke
DOI:10.1021/jo800087n
日期:2008.6.1
An efficient new methodology for the arylation of aldehydes is disclosed which uses dirhodium(II) catalysts and N-heterocyclic carbene (NHC) ligands. Complexes of Rh2(OAc)4 with one and two NHCs attached on the axial positions were successfully isolated, fully characterized, and used as catalysts in the reaction. The saturated monocomplex ((NHC 5)Rh2(OAc)4) 31 was shown to be the most active catalyst
Rhodium-catalyzed benzylic fluorination of trichloroacetimidates
作者:Qi Zhang、Jason C. Mixdorf、Gilbert J. Reynders、Hien M. Nguyen
DOI:10.1016/j.tet.2015.04.066
日期:2015.9
via rhodium-catalyzed nucleophilic fluorination of benzylic trichloroacetimidates. A variety of naphthyl, phenyl, and pyridinyl trichloroacetimidates were fluorinated with Et3N·3HF reagent to provide fluorine-containing compounds in moderate to high yields under mild and operationally simple conditions. Preliminary mechanistic studies suggest that benzylic fluorination of trichloroacetimidate substrates
The Effects of Alkyl Substitution in Drugs--I. Substituted Dimethylaminoethyl Benzhydryl Ethers
作者:A. F. Harms、W. Th. Nauta
DOI:10.1021/jm50008a005
日期:1960.2
Bolton, Roger; Burley, Rita E.; Williams, Nigel J., Australian Journal of Chemistry, 1986, vol. 39, # 4, p. 625 - 634
作者:Bolton, Roger、Burley, Rita E.、Williams, Nigel J.
DOI:——
日期:——
Suzuki-Miyaura Coupling of Diarylmethyl Carbonates with Arylboronic Acids: A New Access to Triarylmethanes
作者:Jung-Yi Yu、Ryoichi Kuwano
DOI:10.1021/ol800078j
日期:2008.3.1
Suzuki-Miyaura coupling of diarylmethyl carbonates with arylboronic acids proceeded in the presence of [Pd(eta(3)-C3H5)Cl](2)-DPPPent (1,5-bis(diphenylphosphino)pentane) catalyst, yielding a variety of triarylmethanes.