Palladium-Catalyzed Selective Acyloxylation Using Sodium Perborate as Oxidant
作者:Lukasz T. Pilarski、Pär G. Janson、Kálmán J. Szabó
DOI:10.1021/jo1024199
日期:2011.3.4
component of washing powders, was employed as an inexpensive and eco-friendly oxidant in the palladium-catalyzed C−H acyloxylation of alkenes in excellent regio- and stereochemistry. The reactions used anhydrides as acyloxy sources. The method applies to both terminal and internal alkenes, and even benzylic C−H oxidation.
Aerobic Acyloxylation of Allylic C−H Bonds Initiated by a Pd
<sup>0</sup>
Precatalyst with 4,5‐Diazafluoren‐9‐one as an Ancillary Ligand
作者:Caitlin V. Kozack、Jennifer A. Sowin、Jonathan N. Jaworski、Andrei V. Iosub、Shannon S. Stahl
DOI:10.1002/cssc.201900727
日期:2019.7.5
Palladium‐catalyzedallylicC−H oxidation has been widely studied, but most precedents use acetic acid as the coupling partner. In this study, a method compatible with diverse carboxylic acid partners has been developed. Use of a Pd0 precatalyst under aerobic reaction conditions leads to oxidation of Pd0 by O2 in the presence of the desired carboxylic acid to generate a PdII dicarboxylate that promotes
Carboxylates as pronucleophiles in the phosphine-catalyzed γ-addition reaction
作者:Carlos Alvarez-Ibarra、Aurelio G. Csákÿ、Cristina Gómez de la Oliva
DOI:10.1016/s0040-4039(99)01775-x
日期:1999.11
Carboxylates have been used as pronucleophiles in the phosphine-catalyzed gamma-addition reaction to alkynes bearing electron-withdrawing groups (Trost's reaction) giving rise to functionalized allyl carboxylates. (C) 1999 Elsevier Science Ltd. All rights reserved.