36244-10-7Relevant academic research and scientific papers
Palladium-catalyzed synthesis of novel trifluoromethylated quinazolinone, N-arylquinazoline and N-benzylquinazoline derivatives
Sajadi, Mahdieh Sadat,Kazemi, Elham,Darehkordi, Ali
, (2021)
A simple and palladium-catalyzed procedure for synthesis of a novel series of potentially biologically active trifluoromethyl-substituted quinazolinones and N-arylquinazoline derivatives via condensation-cyclization reaction of 2-aminobenzamide, 2-amino-N′-arylbenzimidamides and 2-amino-N′-benzylbenzimidamides with trifluoroacetimidoyl chlorides has been developed. noteworthy, this investigation showed the possible of transition-metal-catalyzed activation of trifluoroacetimidoyl chlorides as a carbon trifluoromethylated source for the synthesis of quinazolines and quinazolinone derivatives in good to excellent yields.
Method for synthesizing 2-trifluoromethyl substituted quinazolinone by multi-component one-pot method
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Paragraph 0033-0039, (2021/03/13)
The invention discloses a method for synthesizing 2-trifluoromethyl substituted quinazolinone by a multi-component one-pot method, and the method comprises the following steps: adding a palladium catalyst, a ligand, a carbon monoxide substitute, an additi
Palladium-Catalyzed Carbonylative Synthesis of 2-(Trifluoromethyl)quinazolin-4(3H)-ones from Trifluoroacetimidoyl Chlorides and Nitro Compounds
Wang, Le-Cheng,Zhang, Yu,Chen, Zhengkai,Wu, Xiao-Feng
supporting information, p. 1417 - 1426 (2021/02/01)
A procedure on palladium-catalyzed carbonylative reaction of trifluoroacetimidoyl chlorides and nitro compounds for the construction of pharmaceutically valuable 2-(trifluoromethyl)quinazolin-4(3H)-ones has been achieved. In this transformation, Mo(CO)6 has been used both as a convenient CO source and a reducing reagent. This newly developed protocol is compatible with various nitro compounds and can be readily scaled up to 1 mmol scale. (Figure presented.).
Preparation method of 2 - trifluoromethyl substituted quinazoline ketone compound (by machine translation)
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Paragraph 0034-0041, (2020/09/30)
The invention discloses a preparation method of 2 -trifluoromethyl-substituted quinazolone compounds, which comprises the following steps: ferric trichloride and sodium hydrogen. The molecular sieve, trifluoroethyl imine acyl chloride and indirubin were a
FeCl3-Mediated Synthesis of 2-(Trifluoromethyl)quinazolin-4(3 H)-ones from Isatins and Trifluoroacetimidoyl Chlorides
Wang, Le-Cheng,Du, Shiying,Chen, Zhengkai,Wu, Xiao-Feng
, p. 5567 - 5571 (2020/07/14)
An FeCl3-mediated cascade coupling/decarbonylative annulation reaction for the efficient construction of 2-(trifluoromethyl)quinazolin-4(3H)-ones has been developed. This transformation employs readily available isatins and trifluoroacetimidoyl chlorides as the starting materials, providing a facile and practical route to diverse biologically relevant quinazolin-4(3H)-one derivatives. A plausible reaction pathway has been proposed based on the mechanistic observations.
Palladium-catalyzed four-component carbonylative synthesis of 2,3-disubstituted quinazolin-4(3H)-ones: Convenient methaqualone preparation
Peng, Jin-Bao,Geng, Hui-Qing,Wang, Wei,Qi, Xinxin,Ying, Jun,Wu, Xiao-Feng
, p. 10 - 13 (2018/07/03)
A palladium-catalyzed four-component carbonylative cyclization reaction for the synthesis of 2,3-disubstituted quinazolin-4(3H)-ones has been developed. A range of different 2,3-disubstituted quinazolin-4(3H)-one derivatives were prepared in moderate to good yields employing simple and readily accessible 2-iodoanilines, nitro compounds and acid anhydrides as the synthetic precursors. Mo(CO)6 acted both as a solid CO source and a reductant. Notably, methaqualone as a sedative and hypnotic medication can be prepared easily in 68% yield (4b) under our conditions as well.
N,N'-Disubstituted trifluoroacetamidines for trifluoromethylated polynitrogen heterocycles
Uneyama,Yamashita,Sugimoto,Morimoto
, p. 2717 - 2718 (2007/10/02)
N,N'-Disubstituted trifluoroacetamidines have been prepared and transformed to the trifluoromethylated polynitrogen heterocycles.
