88737-72-8Relevant academic research and scientific papers
DMSO as a Dual Carbon Synthon and Water as Oxygen Donor for the Construction of 1,3,5-Oxadiazines from Amidines
Zhang, Yi,Kuang, Jinqiang,Xiao, Xuqiong,Wang, Lei,Ma, Yongmin
, p. 3960 - 3964 (2021)
A selective and efficient synthesis of diaryl 1,3,5-oxadiazines was established for the first time from simple and readily available amidines in wet DMSO. DMSO was employed as a dual carbon synthon and water offered the oxygen atom to construct the oxadiazine ring. The reaction involved two new C-N and two new C-O bond formations.
ORGANIC ELECTROLUMINESCENT MATERIAL AND DEVICE
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Paragraph 0162-0163, (2021/05/07)
A compound having a first ligand of the following is described. Ring A represents a monocyclic aromatic group or a polycyclic aromatic group. Ring B represents a polycyclic aromatic group. Z is a carbon. Z and the right N are coordinated to a metal to form a five-membered chelate ring. R1 and R2 independently represent mono to a maximum possible number of substitutions, or no substitution.
Lewis acid-catalyzed 2-arylquinazoline formation from: N ′-arylbenzimidamides and paraformaldehyde
Cheng, Xiufang,Wang, Huamin,Xiao, Fuhong,Deng, Guo-Jun
supporting information, p. 5773 - 5776 (2016/11/06)
An efficient procedure for the synthesis of 2-arylquinazolines from N′-arylbenzimidamides has been developed under transition-metal-free conditions. In this process, stable and low-toxicity paraformaldehyde was used as the carbon source. A broad range of
Synthesis of quinazolines and tetrahydroquinazolines: Copper-catalyzed tandem reactions of 2-bromobenzyl bromides with aldehydes and aqueous ammonia or amines
Fan, Xuesen,Li, Bin,Guo, Shenghai,Wang, Yuanyuan,Zhang, Xinying
supporting information, p. 739 - 743 (2014/03/21)
An efficient synthesis of diversely substituted quinazolines and 1,2,3,4-tetrahydroquinazolines through copper-catalyzed tandem reactions of the readily available 2-bromobenzyl bromides, aldehydes, and aqueous ammonia or amines has been developed. By using ammonia and simple aliphatic amines as the nitrogen source, the present method provides a versatile and practical protocol for the synthesis of quinazolines and 1,2,3,4-tetrahydroquinazolines. Copper on the beat: An efficient, simple and economical synthesis of diversely substituted quinazolines and 1,2,3,4-tetrahydroquinazolines has been developed through copper-catalyzed tandem reactions of the readily available 2-bromobenzyl bromides, aldehydes, and aqueous ammonia or simple aliphatic amines. Copyright
Copper-catalyzed annulation of amidines for quinazoline synthesis
Lv, Yunhe,Li, Yan,Xiong, Tao,Pu, Weiya,Zhang, Hongwei,Sun, Kai,Liu, Qun,Zhang, Qian
supporting information, p. 6439 - 6441 (2013/08/23)
An efficient Cu-catalyzed synthesis of quinazolines via the C-N bond formation reactions between N-H bonds of amidines and C(sp3)-H bonds adjacent to sulfur or nitrogen atoms in the commonly used solvents, such as DMSO, DMF, DMA, NMP or TMEDA,
New Synthesis of Fused Pyrimidine Derivatives via ortho-(Isocyanomethyl)nitroaromatic Compounds
Ostrowski, Stanislaw
, p. 180 - 187 (2007/10/03)
An efficient synthesis of functionalized fused pyrimidine derivatives from the respective ortho-(isocyanomethyl)nitroarenes is described.Hydrolysis of the isocyano group in the title isonitriles followed by catalytic reduction of the nitro group and subsequent cyclocondensation of the diamine formed with orthoesters leads to the final products.
NEW SYNTHESIS OF QUINAZOLINE AND BENZOQUINAZOLINE DERIVATIVES
Robev, Stefan K.
, p. 4351 - 4354 (2007/10/02)
The synthesis of 2-substituted quinazolines II from 1,3-diazabutadienes I and of benzoquinazolines IV and VI from N-naphthylsubstituted amidines III and V the yields being up to 90percent is reported.
