Palladium-catalyzed carbonylation of benzylic ammonium salts to amides and esters <i>via</i> C–N bond activation
作者:Weijie Yu、Shuwu Yang、Fei Xiong、Tianxiang Fan、Yan Feng、Yuanyuan Huang、Junkai Fu、Tao Wang
DOI:10.1039/c8ob00488a
日期:——
An efficient palladium-catalyzed carbonylation reaction of readily available quaternary ammonium salts with CO is reported for the first time to afford arylacetamides and arylacetic acid esters via benzylic C–N bond cleavage. This protocol features mild reaction conditions under atmospheric pressure of CO, a redox-neutral process without an additional oxidant, and a broad substrate scope for various
Nickel-Catalyzed Cross Couplings of Benzylic Ammonium Salts and Boronic Acids: Stereospecific Formation of Diarylethanes via C–N Bond Activation
作者:Prantik Maity、Danielle M. Shacklady-McAtee、Glenn P. A. Yap、Eric R. Sirianni、Mary P. Watson
DOI:10.1021/ja3089422
日期:2013.1.9
We have developed a nickel-catalyzed cross coupling of benzylic ammonium triflates with aryl boronicacids to afford diarylmethanes and diarylethanes. This reaction proceeds under mild reaction conditions and with exceptional functional group tolerance. Further, it transforms branched benzylic ammonium salts to diarylethanes with excellent chirality transfer, offering a new strategy for the synthesis
Synthesis of sulfone derivatives via palladium-catalyzed cross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides
作者:Juelin Wan、Weijie Yu、Tao Wang、Jin Luo
DOI:10.1080/10426507.2021.2016758
日期:2022.7.3
Abstract A palladium-catalyzedcross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides for the synthesis of various benzyl sulfones is reported. This novel protocol shows widespread functional group tolerance, leading to the desired sulfones in moderate to excellent yields.
highly efficient palladium-catalyzed Sonogashira coupling of benzylic ammonium salts with terminal alkynes is developed. This strategy provides a facile access to a series of internal alkyne derivatives in moderate to excellent yields via C-N bond cleavage and C(sp3)-C(sp) bondformation. The broad substrate scope and high functionalgroup tolerance make this reaction attractive for organic synthesis