Allylic Amination of Internal Alkynes with Aromatic and Aliphatic Amines Using Polymer-Supported Triphenylphosphane-Palladium Complex as a Heterogeneous and Recyclable Catalyst
作者:Yogesh S. Wagh、Pawan J. Tambade、Dinesh N. Sawant、Bhalchandra M. Bhanage
DOI:10.1002/ejoc.201000463
日期:2010.9
for the allylic amination of internalalkynes with amines by using a polymer-supported triphenylphosphane-palladium complex [PS-TPP-Pd] as a highly active heterogeneous reusable catalyst was developed. The catalyst exhibited remarkable activity and is reusable over five consecutive cycles. The protocol was applicable for a variety of hindered and functionalized aromatic/ aliphatic amines and afforded
Pd(OAc)2/dppf as an efficient and highly active catalyst for the allylation of amines, alcohols and carboxylic acids with 1-phenyl-1-propyne
作者:Yogesh S. Wagh、Dinesh N. Sawant、Pawan J. Tambade、Kishor P. Dhake、Bhalchandra M. Bhanage
DOI:10.1016/j.tet.2011.02.008
日期:2011.4
Pd(OAc)(2)/1,1'-bis(diphenylphosphino)ferrocene as an efficient, highly active catalyst for the allylation of amines, alcohols and carboxylic acids with 1-phenyl-1-propyne has been developed. The effect of various reaction parameters, such as ligand, time, solvent, temperature, metal: ligand ratio and catalyst concentration on yields of the product were investigated. The optimized procedure works well under mild operating conditions and permits rapid generation of a library for various allylated products. (C) 2011 Elsevier Ltd. All rights reserved.
作者:Kseniya A. Alekseeva、Maryana A. Nadirova、Vladimir P. Zaytsev、Evgeniya V. Nikitina、Mikhail S. Grigoriev、Anton P. Novikov、Irina A. Kolesnik、Bernhard Mayer、Thomas J. J. Müller、Fedor I. Zubkov
DOI:10.1021/acs.joc.3c01476
日期:2023.11.3
adjacent chiral centers and leading to a single diastereoisomer of the title compound. The efficiency of the transformation is secured by thermal conditions or utilization of soft Lewisacids (Yb(OTf)3) as catalysts. The kinetics and mechanism of the 3CR were studied by using dynamic 19F NMR. Based on the NMR data and density functional theory (DFT) calculations, the IMDAV, not the Alder-ene, reaction