AgPd Nanoparticles Deposited on WO<sub>2.72</sub> Nanorods as an Efficient Catalyst for One-Pot Conversion of Nitrophenol/Nitroacetophenone into Benzoxazole/Quinazoline
作者:Chao Yu、Xuefeng Guo、Zheng Xi、Michelle Muzzio、Zhouyang Yin、Bo Shen、Junrui Li、Christopher T. Seto、Shouheng Sun
DOI:10.1021/jacs.7b01983
日期:2017.4.26
acid, 2-nitrophenol, and aldehydes into benzoxazoles in near quantitative yields under mild conditions. The catalysis can also be extended to the one-pot reactions of ammonium formate, 2-nitroacetophenone, and aldehyde for high yield syntheses of quinazolines. Our studies demonstrate a new catalyst design to achieve a green chemistry approach to one-pot reactions for the syntheses of benzoxazoles and quinazolines
Copper-catalyzed three-component one-pot synthesis of quinazolines
作者:Jia Ju、Ruimao Hua、Ji Su
DOI:10.1016/j.tet.2012.09.035
日期:2012.11
Two efficient approaches to multi-substituted quinazolines by the three-componentone-pot reaction of o-bromo aromatic ketones/aldehydes, ammonia water and aromatic aldehydes, or primary alcohols catalyzed by CuCl have been developed.
[EN] TETRAHYDROISOQUINOLIN-2-YL-(QUINAZOLIN-4-YL) METHANONE COMPOUNDS AS CANCER CELL GROWTH INHIBITORS<br/>[FR] COMPOSÉS DE TÉTRAHYDROISOQUINOLIN-2-YL-(QUINAZOLIN-4-YL)MÉTHANONE À TITRE D'INHIBITEURS DE CROISSANCE DES CELLULES CANCÉREUSES
申请人:REXAHN PHARMACEUTICALS INC
公开号:WO2014143960A1
公开(公告)日:2014-09-18
Tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone derivatives represented by formula (I), pharmacologically acceptable salts thereof, and compositions containing such compounds are described. Methods for treating hyperproliferative disorders by administering the compounds are also described. 1,2,3,4-tetrahydroisoquinoline derivatives for making tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone compounds are also described.
The first Pd/C‐catalyzedoxidative C(sp3)−H bond amination of o‐nitroacetophenones with benzylamines or amino acids proceeding through C−N bond cleavage followed by C−N bond formation by a hydrogen‐transfer strategy was developed. These transformations proceeded smoothly in water to afford the desired quinazolines in moderate to good yields. This protocol has a broad substrate scope and good tolerance
Palladium-catalyzed one pot 2-arylquinazoline formation via hydrogen-transfer strategy
作者:Huamin Wang、Hui Chen、Ya Chen、Guo-Jun Deng
DOI:10.1039/c4ob01296h
日期:——
The palladium catalytic system was first applied to 2-arylquinazoline synthesis via hydrogen transfer methodology. Various (E)-2-nitrobenzaldehyde O-methyl oximes reacted easily with alcohols or benzyl amines to provide N-heterocyclic compounds in good to high yields. Similarly, the heterocyclic products could be prepared by the reaction of 1-(2-nitrophenyl)ethanone, urea and benzyl alcohols. In these reactions, the nitro group was reduced in situ by hydrogen generated from the alcohol dehydrogenation step.