作者:Arpan Banerjee、Parthasarathi Subramanian、Krishna P. Kaliappan
DOI:10.1021/acs.joc.6b01287
日期:2016.11.4
An efficient one-pot Cu-catalyzed C–H functionalization/two-fold C–N bond formation protocol for the syntheses of N-aryl benzimidazoquinazolinones is being reported. This strategy involves a Cu-catalyzed C–N bond coupling reaction between N-anilinoquinazolinones and aryl/heteroaryl halides followed by acetate ligand-assisted intramolecular C–H amination.a This reaction is high-yielding and straightforward
New and efficient synthesis of 3-arylquinazolin-4(1H)-ones and biologically important N-fused tetracycles based on N-(2-carboxyphenyl)oxalamide
作者:Vakhid A. Mamedov、Vera L. Mamedova、Victor V. Syakaev、Aidar T. Gubaidullin、Julia K. Voronina、Temur A. Kushatov、Dmitry E. Korshin、Aida I. Samigullina、Ekaterina G. Tanysheva、Il'dar Kh. Rizvanov、Shamil K. Latypov
DOI:10.1016/j.tetlet.2021.153327
日期:2021.10
A novel clean, one-pot syntheses of 3-arylquinazolin-4(3H)-ones and quinoxalino[2,1-b]quinazoline-6,12(5H)-diones via PPA-mediated coupling of N-(2-carboxyphenyl)oxalamides with arylamines and 1,2-benzenediamines have been developed. Under mild reaction conditions with use of Na2S2O4 the benzimidazo[2,1-b]quinazolin-12-ones were achieved in good yield from 3-(2-nitrophenyl)quinazolin-4-ones.
一种新的清洁,一锅煮3- arylquinazolin-4的合成(3 ħ) -酮和quinoxalino [2,1- b ]喹唑啉-6,12-(5 ħ) -二酮通过PPA介导的耦合ñ - (2- -羧基苯基)草酰胺与芳胺和 1,2-苯二胺已被开发。在使用Na 2 S 2 O 4的温和反应条件下,苯并咪唑并[ 2,1 - b ]喹唑啉-12-酮以良好产率从3-(2-硝基苯基)喹唑啉-4-酮获得。
RANGANATHAN, DARSHAN;FAROOQUI, FIRDOUS, TETRAHEDRON LETT., 1984, 25, N 49, 5701-5704
作者:RANGANATHAN, DARSHAN、FAROOQUI, FIRDOUS
DOI:——
日期:——
Photocatalytic cyclization of 3-(2-isocyanophenyl)quinazolin-4(3<i>H</i>)-ones for the construction of quinoxalino[2,1-<i>b</i>]quinazolinones
作者:Xian Wu、Lingli Liu、Chengli Xiang、Jin-Tao Yu、Changduo Pan
DOI:10.1039/d4cc00187g
日期:——
3-(2-Isocyanophenyl)quinazolin-4(3H)-ones were designed and synthesized as new building units for the construction of novel quinoxalino[2,1-b]quinazolinones under mild, photocatalytic and metal-free conditions.