Pd/C-catalyzed synthesis of oxamates by oxidative cross double carbonylation of alcohols and tertiary amines through C–N bond cleavage
作者:Yuvraj A. Kolekar、Bhalchandra M. Bhanage
DOI:10.1039/c9nj04156g
日期:——
carbonylation of alcohols and unactivated tertiary amines has been demonstrated. The in situ oxidative C–N bond cleavage of tertiary amines was achieved using molecular oxygen as an environmentally benign oxidant providing a user-friendly approach to the synthesis of oxamates. The developed protocol showed excellent activity towards the cyclic as well as aliphatic tertiary amines and long-chainalcohols. This
was developed. It provides a convenient and efficient way to synthesize amides. Based on this method, trichlorinated organic compounds were converted into amides in the presence of an amine under aerobic conditions at room temperature in a one-pot procedure. Various trichlorinated organic compounds and an amine source, such as primary, secondary, and cyclic amines, have been evaluated for this transformation
Synthesis and first X-ray structures of cobalt(II) and cobalt(III) complexes bearing 2,4-dioxo-alkanoic acid dialkylamide ligands
作者:Jian Wang、Nicholas A Morra、Hongda Zhao、Jeffrey ST Gorman、Vincent Lynch、Robert McDonald、John F Reichwein、Brian L Pagenkopf
DOI:10.1139/v08-151
日期:2009.1.1
report we describe the first crystal structures of 2,4-dioxo-alkanoic acid dialkylamide complexes for both Co(II) and Co(III) salts. The Co(II) structures show an unprecedented arrangement of atoms, with a central Co(II)(H2O)6 flanked by two Co(II) atoms each coordinated with three anionic chelating ligands. The dimeric Co(III) structures show two anionic chelating ligands and bridging hydroxyl groups.Key
1,8-Naphthyridines VI. Synthesis and anti-inflammatory activity of 5-(alkylamino)-N,N-diethyl[1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides with a new substitution pattern on the triazole ring
作者:Mario Di Braccio、Giancarlo Grossi、Giorgio Roma、Daniela Piras、Francesca Mattioli、Marzia Gosmar
DOI:10.1016/j.ejmech.2007.04.016
日期:2008.3
in which the 9-alkyl substituent was replaced by an ester or amide group (compounds 3a-i), was prepared and tested (inhibition of carrageenan-induced paw edema in the rat). Also two 5-(N-alkyl,N-acylamino) derivatives (compounds 4a,b) were synthesized and evaluated for the same purpose. Even though the general trend for these new [1,2,4]triazolo[4,3-a][1,8]naphthyridine derivatives was a decrease