Oxindole synthesis by palladium-catalysed aromatic C–H alkenylation
作者:Satoshi Ueda、Takahiro Okada、Hideko Nagasawa
DOI:10.1039/b926560k
日期:——
A strategy involving palladium-catalysed aromatic C-H functionalisation/intramolecular alkenylation provides a convenient and direct synthesis of 3-alkylideneoxindoles. In the presence of 5 mol% of PdCl(2)MeCN(2) and AgOCOCF(3), a wide variety of N-cinnamoylanilines gave 3-alkylideneoxindoles in moderate to good yield.
The rhenium hetaphydride complex was found to be a versatile, homogeneous catalyst for dehydrogenative functionalization of alcohol. The dehydrogenative C-C coupling of alcohols and carbonyl compounds was carried out in the absence Of base and hydrogen acceptors to afford a series of alpha,beta-unsaturated carbonyl compounds. A possible dual activation pathway was proposed by mechanistic investigations.
Heterobimetallic Cobalt/Rhodium Nanoparticle-Catalyzed Carbonylative Cycloaddition of 2-Alkynylanilines to Oxindoles
作者:Ji Hoon Park、Eunha Kim、Young Keun Chung
DOI:10.1021/ol801978n
日期:2008.11.6
The cobalt-rhodium heterobimetallic nanoparticle-catalyzed synthesis of oxindoles from 2-alkynylanilines in the presence of carbon monoxide is described.
Stolle, Chemische Berichte, 1914, vol. 47, p. 2121