Palladium-Catalyzed <i>Ortho</i>-Selective C–H Oxidative Carbonylation of <i>N</i>-Substituted Anilines with CO and Primary Amines for the Synthesis of <i>o</i>-Aminobenzamides
An efficient, one-pot strategy with high selectivity and high atom economy for the synthesis of o-aminobenzamides has been developed via palladium-catalyzed ortho-selective C–H oxidative carbonylation of N-substitutedanilines with CO and primary amines. A wide range of N-substitutedanilines and primary amines can be tolerated in this transformation to afford the corresponding o-aminobenzamides in
Selective hydrolysis of carbonimidodithioates (3) leads to the thiocarbamates (4), which can be easily transformed to the unsymmetricalureas (5) by treatment with the appropriate amines. This constitutes a synthesis of ureas without the use of phosgene or carbonmonoxide.
Conversion of O -succinimidyl carbamates to N -( O -carbamoyl)-succinmonoamides and ureas: effects of N -substituents and reaction conditions on the reaction pathway
作者:Natalya I. Vasilevich、David H. Coy
DOI:10.1016/s0040-4039(02)01451-x
日期:2002.9
Whereas N-monoalkyl-O-succinimidyl carbamates reacted with primary and secondary amines to produce Only ureas, N,N-dialkyl-O-succinimidyl carbamates reacted with primary and secondary amines to produce N-(O-carbamoyl)-succinmonoamides. N-Alkyl-N-aryl-O-succinimidyl carbamates under the same condition led to Mixture of both products. The effects of N-substituents and reaction conditions On O-succinimidyl carbamates conversion are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.
Boehmer, Recueil des Travaux Chimiques des Pays-Bas, 1936, vol. 55, p. 379,383
作者:Boehmer
DOI:——
日期:——
MUNTEAN, IOAN;HERDAN, JEAN MICHEL;VALEANU, GABRIELA, REV. ROUM. CHIM., 33,(1988) N 5, C. 467-471
作者:MUNTEAN, IOAN、HERDAN, JEAN MICHEL、VALEANU, GABRIELA