The syntheses of symmetric ureas by oxidative carbonylation of amines overresin immobilized gold
Citation
F. Shi et al., The syntheses of symmetric ureas by oxidative carbonylation of amines overresin immobilized gold, ACT CHIM S, 59(8), 2001, pp. 1330-1334
Categorie Soggetti
Chemistry
Journal title
ACTA CHIMICA SINICA
SICI code
0567-7351(2001)59:8<1330:TSOSUB>2.0.ZU;2-H
Abstract
Symmetric ureas were synthesized with high efficiency and selectivity by ox
idative carbonylation of aromatic and aliphatic amines in the presence of r
esin immobilized gold, e.g. 1475 of TOF and 99% of selectivity were achieve
d when using aniline as the substrate. No other organic solvent was used in
the reactions and highly pure products could be obtained due to the high s
electivity and the easy separation of the catalyst from the reaction system
.