1098336-86-7Relevant academic research and scientific papers
Pd-catalyzed benzylic C-H amidation with benzyl alcohols in water: A strategy to construct quinazolinones
Hikawa, Hidemasa,Ino, Yukari,Suzuki, Hideharu,Yokoyama, Yuusaku
, p. 7046 - 7051 (2012)
A novel method for the synthesis of 4-phenylquinazolinones via a palladium-catalyzed domino reaction of o-aminobenzamides with benzyl alcohols is developed. This protocol involves N-benzylation, benzylic C-H amidation, and dehydrogenation in water, which may play an important role in the smooth generation of the (η3-benzyl)palladium species by activation of the hydroxyl group of the benzyl alcohol.
Access to 2-Arylquinazolin-4(3H)-ones through Intramolecular Oxidative C(sp3)?H/N?H Cross-Coupling Mediated by I2/DMSO
Wen, Simiaomiao,Du, Yifan,Liu, Yiwen,Cui, Xiaofeng,Liu, Qixing,Zhou, Haifeng
, (2021/12/01)
A novel approach for the synthesis of 2-arylquinazolin-4(3H)-ones was developed. A series of title compounds were obtained with good functional group tolerance and good yields by I2/DMSO-mediated intramolecular oxidative cross-coupling of 2-(benzylamino)benzamides to form C=N double bonds. This method was applicable for gram-scale synthesis. A proposed reaction pathway based on some control experiments was also provided.
Linear-Organic-Polymer-Supported Iridium Complex as a Recyclable Auto-Tandem Catalyst for the Synthesis of Quinazolinones via Selective Hydration/Acceptorless Dehydrogenative Coupling from o-Aminobenzonitriles
Hao, Shushu,Yang, Jiazhi,Liu, Peng,Xu, Jing,Yang, Chenchen,Li, Feng
supporting information, p. 2553 - 2558 (2021/04/13)
A linear-organic-polymer-supported iridium complex Cp*Ir@P4VP, which is designed and synthesized by the coordinative immobilization of [Cp*IrCl2]2 on poly(4-vinylpyridine), was proven to be an efficient heterogeneous autotandem catalyst for synthesizing quinazolinones via selective hydration/acceptorless dehydrogenative coupling from o-aminobenzonitriles. Furthermore, the synthesized catalyst was recycled five times without an obvious decrease in the catalytic activity.
Method for preparing 2 -phenyl quinazolinone compound
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Paragraph 0024-0026, (2021/10/30)
The invention relates to a preparation method of 2 -phenyl quinazolinone compounds, in particular to II. To the method, 2 - (benzylamino) benzamide compound (I) is used as a raw material for reaction of the experiment model, a simple substance iodine cata
An efficient transition-metal-free route to quinazolin-4(3H)-onesvia2-aminobenzamides and thiols
Dong, Yibo,Wu, Yangjie,Yan, Congcong,Yang, Jinchen,Zhang, Jinli
supporting information, p. 15344 - 15349 (2021/09/07)
An efficient approach to quinazolin-4(3H)-ones was developed by a one-pot intermolecular annulation reaction ofo-amino benzamides and thiols. This method has the features of good functional group tolerance, being transition metal and external oxidant free, and easy operation. Varieties of 2-aryl (heteroaryl) quinazolin-4(3H)-one, 2-phenyl-pyrido[2,3-d]pyrimidin-4(3H)-one and 3-phenyl-2H-1,2,4-benzo thiadiazine-1,1-dioxide derivatives were obtained with a yield of up to 98%. The control experiment revealed that the thiol substrate could promote the dehydroaromatization step.
Ruthenium(II)-catalyzed C?C/C?N coupling of 2-arylquinazolinones with vinylene carbonate: Access to fused quinazolinones
Wang, Zhao-Hui,Wang, He,Wang, Hua,Li, Lei,Zhou, Ming-Dong
supporting information, p. 995 - 999 (2021/03/03)
In this work, ruthenium(II)-catalyzed C?C/C?N annulation of 2-arylquinazolinones with vinylene carbonate is reported to synthesize fused quinazolinones. This catalytic system tolerates a wide range of substrates with excellent functional-group compatibility. In this transformation, the vinylene carbonate acts as an ethynol surrogate without any external oxidant involved. Furthermore, preliminary mechanistic studies were conducted, and a plausible catalytic cycle was also proposed.
Polystyrene-Supported Palladium (Pd?PS)-Catalyzed Carbonylative Annulation of Aryl Iodides Using Oxalic Acid as a Sustainable CO Source for the Synthesis of 2-Aryl Quinazolinones
Ram, Shankar,Shaifali,Chauhan, Arvind Singh,Sheetal,Sharma, Ajay Kumar,Das, Pralay
supporting information, p. 14506 - 14511 (2019/11/21)
An efficient and convenient strategy for the synthesis of diversely substituted quinazolinones from o-carbamoyl/cyano aniline and aryl iodides using oxalic acid as a CO source under polystyrene supported palladium (Pd?PS) nanoparticles (NPs) catalyzed con
Method for synthesizing quinazolinone derivative
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Paragraph 0078-0081, (2019/11/04)
The invention discloses a method for synthesizing a quinazolinone derivative. According to the method for synthesizing the quinazolinone derivative,anthranilonitrile compounds and primary alcohols areused as raw materials, 2,2,6,6-tetramethylpiperidine ox
Copper-mediated synthesis of quinazolin-4(3: H)-ones from N-(quinolin-8-yl)benzamide and amidine hydrochlorides
Ban, Zihui,Cui, Xinfeng,Hu, Fangpeng,Lu, Guoqiang,Luo, Nan,Huang, Guosheng
, p. 12963 - 12966 (2019/08/28)
An efficient copper-mediated tandem C(sp2)-H amination to provide quinazolinones from N-(quinolin-8-yl)benzamide and amidine hydrochlorides has been developed. It can afford rather complex products in a single step synthesis from easily availab
Chemoselective Trifluoroethylation Reactions of Quinazolinones and Identification of Photostability
Maiti, Saikat,Kim, Jaeshin,Park, Jae-Heon,Nam, Dongsik,Lee, Jae Bin,Kim, Ye-Jin,Kee, Jung-Min,Seo, Jeong Kon,Myung, Kyungjae,Rohde, Jan-Uwe,Choe, Wonyoung,Kwon, Oh-Hoon,Hong, Sung You
supporting information, p. 6737 - 6751 (2019/06/04)
Herein, we report chemoselective trifluoroethylation routes of unmasked 2-arylquinazolin-4(3H)-ones using mesityl(2,2,2-trifluoroethyl)iodonium triflate at room temperature. Homologous C-, O-, and N-functionalized subclasses are accessed in a straightforward manner with a wide substrate scope. These chemoselective branching events are driven by Pd-catalyzed ortho-selective C-H activation at the pendant aryl ring and base-promoted reactivity modulation of the amide group, leveraging the intrinsic directing capability and competing pronucleophilicity of the quinazolin-4(3H)-one framework. Furthermore, outstanding photostability of the quinazolin-4(3H)-one family associated with nonradiative decay is presented.
