Addition of heterocycles to electron deficient olefins and alkynes catalyzed by gold(III)
作者:Zigang Li、Zhangjie Shi、Chuan He
DOI:10.1016/j.jorganchem.2005.03.009
日期:2005.11
A gold(III)-catalyzed hydroarylation of different olefins is reported here. AuCl3 works as an excellent catalyst to mediate reactions between various heterocycles and electron deficient olefins and alkynes under mild conditions. This gold(III)-based method tolerates different functional groups such as aldehyde, carboxylic acid, nitrile, and is highly efficient. We have shown that some of these reactions
Gold(III) Chloride‐Catalyzed Addition Reactions of Electron‐Rich Arenes to Methyl Vinyl Ketone
作者:Gerald Dyker、Enrico Muth、A. Stephen K. Hashmi、Li Ding
DOI:10.1002/adsc.200303098
日期:2003.11
For the reaction of α,β-unsaturated ketones with electron-rich arenes catalyzed by gold(III) chloride both, a Friedel–Crafts-type mechanism and an initial metallation, are evaluated. Gold(III) chloride has proven to be an efficient catalyst under very moderate reaction conditions, however, in the case of sterically demanding products HBF4 turned out to be the superior catalyst.
Bicatalytic Allylation–Cross-Metathesis Reactions as γ-Carbonyl Cation Equivalents
作者:James Green、Jake Henkie、Sugadar Dhaliwal
DOI:10.1055/s-0032-1317045
日期:——
The products corresponding to the reactions of arenes and γ-carbonyl cations may be obtained by a one-pot, bicatalytic process involving InCl3-catalyzed arene allylation and cross metathesis with electron-deficient alkenes. The process is successful with electronically neutral and electron-rich arenes, and modestly Lewis basic donor groups are tolerated with an increase in InCl3 loading from 10 mol%
Heterobimetallic Pd–Sn Catalysis: Michael Addition Reaction with C-, N-, O-, and S-Nucleophiles and in Situ Diagnostics
作者:Debjit Das、Sanjay Pratihar、Sujit Roy
DOI:10.1021/jo302643v
日期:2013.3.15
An efficient Michael addition reaction of differently substituted enones with carbon, sulfur, oxygen, and nitrogen nucleophiles has been achieved by a new heterobimetallic "Pd-Sn" catalyst system. The nature of the catalytically relevant species and their interactions with the enone moiety has been examined by spectroscopy. The effect of ligand and the coordination mode of enone with "Pd-Sn" heterobimetallic system have been investigated by kinetics and DFT studies. A straightforward application of this methodology is shown in the synthesis of 1,4-oxathiepane core.
Structure-activity relations in psychotomimetic phenylalkylamines
作者:F. A. B. Aldous、B. C. Barrass、K. Brewster、D. A. Buxton、D. M. Green、R. M. Pinder、P. Rich、M. Skeels、K. J. Tutt