1229610-00-7Relevant academic research and scientific papers
TMSOTf-catalyzed synthesis of substituted quinazolines using hexamethyldisilazane as a nitrogen source under neat and microwave irradiation conditions
Chan, Chieh-Kai,Lai, Chien-Yu,Wang, Cheng-Chung
, p. 7201 - 7212 (2020/10/02)
In this article, we report an efficient and mild synthetic route for the construction of substituted quinazolines from functionalized 2-aminobenzophenones with various benzaldehydes usingcat. TMSOTf and hexamethyldisilazane (HMDS) under neat, metal-free and microwave irradiation conditions in which gaseous ammonia was formedin situ. This synthetic protocol provided the desired quinazolines with a broad substrate scope in good to excellent yields. Some structures were confirmed by X-ray single-crystal diffraction analysis.
STK19 INHIBITORS FOR TREATMENT OF CANCER
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Paragraph 00417-00418; 00420; 00424-00426, (2020/07/14)
Provided herein are compositions and methods for the treatment and prevention of cancer, including melanoma.
Palladium-Catalyzed Three-Component Tandem Process: One-Pot Assembly of Quinazolines
Hu, Kun,Zhen, Qianqian,Gong, Julin,Cheng, Tianxing,Qi, Linjun,Shao, Yinlin,Chen, Jiuxi
supporting information, p. 3083 - 3087 (2018/05/28)
The first example of the palladium-catalyzed, three-component tandem reaction of 2-aminobenzonitriles, aldehydes, and arylboronic acids has been developed, providing a new approach for one-pot assembly of diverse quinazolines in moderate to good yields. A noteworthy feature of this method is the tolerance of bromo and iodo groups, which affords versatility for further synthetic manipulations. Preliminary mechanistic experiments indicate that this tandem process involves two possible mechanistic pathways for the formation of quinazolines via catalytic carbopalladation of the cyano group.
Pd-Catalyzed tandem reaction of N-(2-cyanoaryl)benzamides with arylboronic acids: synthesis of quinazolines
Zhu, Jianghe,Shao, Yinlin,Hu, Kun,Qi, Linjun,Cheng, Tianxing,Chen, Jiuxi
, p. 8596 - 8603 (2018/11/27)
The synthesis of 2,4-disubstituted quinazolines by a palladium-catalyzed reaction of arylboronic acids with N-(2-cyanoaryl)benzamides has been developed with moderate to excellent yields. The method shows good functional group tolerance. In particular, ha
Synthesizing method of drug intermediate quinazoline compound
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Paragraph 0106; 0108; 0113; 0114; 0121-0150, (2018/09/11)
The invention relates to a quinazoline compound as shown in formula (5) and capable of being used as a drug intermediate and a synthesizing method of the quinazoline compound. The synthesizing methodhas the advantages that the method is completed through
Recyclable graphite oxide promoted efficient synthesis of 2-phenyl quinazoline derivatives in the presence of TBHP as an oxidant
Karnakar,Kumar, A. Vijay,Murthy, S. Narayana,Ramesh,Nageswar
supporting information; experimental part, p. 4613 - 4617 (2012/09/22)
A novel and efficient protocol for the synthesis of 2-phenyl quinazoline derivatives is developed by recyclable graphite oxide as a catalyst, devoid of moisture sensitive metal catalysts and corrosive acidic reagents. This new procedure has afforded the desired products in good to excellent yields. The graphite oxide can be synthesized by a simple adoptable procedure from inexpensive and readily available graphite and is recoverable and reusable up to four cycles, without any loss of activity.
DDQ/TBHP-induced oxidative cyclization process: A metal-free approach for the synthesis of 2-phenylquinazolines
Rachakonda, Sridhar,Pratap, P.Surya,Basaveswara Rao, Mandava V.
experimental part, p. 2065 - 2069 (2012/08/07)
Various 2-phenylquinazoline derivatives were synthesized under metal-free conditions from readily available 2-aminophenyl ketones and benzylamines via condensation and oxidative cyclization using 2,3-dichloro-5,6-dicyano-1,4- benzoquinone (DDQ) as a versatile reagent. The reaction gave the corresponding 2-phenylquinazoline derivatives in good to excellent yields (up to 92%). Georg Thieme Verlag Stuttgart ? New York.
An efficient protocol for the synthesis of 2-phenylquinazolines catalyzed by ceric ammonium nitrate (CAN)
Karnakar,Shankar,Murthy, S. Narayana,Ramesh,Nageswar
supporting information; experimental part, p. 1089 - 1096 (2011/06/20)
A facile and efficient method for the synthesis of 2-phenylquinazolines has been developed from 2-aminobenzophenones and benzylamines catalyzed by ceric ammonium nitrate (CAN)-TBHP in acetonitrile. The corresponding 2-phenylquinazolines were obtained in good to excellent yields. Georg Thieme Verlag Stuttgart - New York.
A novel and efficient methodology for the construction of quinazolines based on supported copper oxide nanoparticles
Zhang, Jintang,Yu, Chenmin,Wang, Sujing,Wan, Changfeng,Wang, Zhiyong
supporting information; experimental part, p. 5244 - 5246 (2010/09/05)
A series of quinazolines were synthesized from 2-aminobenzophenones and benzylic amines in good to excellent yields by employing a new heterogeneous catalyst based on the copper oxide nanoparticles supported on kaolin.
A simple and efficient approach to the synthesis of 2-phenylquinazolines via sp3 C-H functionalization
Zhang, Jintang,Zhu, Dapeng,Yu, Chenmin,Wan, Changfeng,Wang, Zhiyong
supporting information; experimental part, p. 2841 - 2843 (2010/09/04)
(Figure presented) A facile and novel approach to the synthesis of 2-phenylquinazolines was developed via a tandem reaction following sp 3 C-H functionalization. Twenty-five examples of 2-phenylquinazolines were obtained from easily available 2-aminobenzophenones and benzylic amines with good to excellent yields.
