Alkene Carboboration Enabled by Synergistic Catalysis
作者:Kevin B. Smith、Kaitlyn M. Logan、Wei You、M. Kevin Brown
DOI:10.1002/chem.201404310
日期:2014.9.15
A synergistic Pd/Cu system for the coupling of alkenes, (Bpin)2 (pin=pinacolate), and aryl/vinyl bromides is disclosed. This method allows for the catalytic generation of secondary Csp3Cu nucleophiles in situ and subsequent Pd‐catalyzed cross‐coupling.
Arylboration of Alkenes by Cooperative Palladium/Copper Catalysis
作者:Kazuhiko Semba、Yoshiaki Nakao
DOI:10.1021/ja5029556
日期:2014.5.28
Arylboration of vinylarenes and methyl crotonate with aryl halides and bis(pinacolato)diboron by cooperative Pd/Cucatalysis has been developed, giving 2-boryl-1,1-diarylethanes and an α-aryl-β-boryl ester in a regioselective manner. The reaction is compatible with a variety of functionalities and amenable to be scaled-up to a gram scale with no detriment to the yield. A short synthesis of the biologically
Unified synthesis of multiply arylated alkanes by catalytic deoxygenative transformation of diarylketones
作者:Miki B. Kurosawa、Kenta Kato、Kei Muto、Junichiro Yamaguchi
DOI:10.1039/d2sc03720c
日期:——
diarylketones leading to multiply arylated alkanes was developed. Diarylketones were reacted with diphenylphosphine oxide resulting in a phospha-Brook rearrangement, followed by palladium-catalyzed cross-couplings or a Friedel–Crafts type alkylation to afford the corresponding multiply arylated alkanes. A variety of diarylketones can be converted to multiply arylated alkanes such as diarylmethanes, tetraarylethanes