Rhodium-Catalyzed Regioselective Direct C-H Amidation of 2,4-Diarylquinazoline with Sulfonyl Azides: An Example of Steric Hindrance Regulated Mono- and Diamidation Selectivity
An unprecedented sterichindrance controlled regioselectiverhodium-catalyzeddirectC–Hamidation of 2,4-diarylquinazoline was described. Sulfonylazides were used as the amine source to provide a variety of amide-functionalized 2,4-diarylquinazolines in high efficiency. The reaction proceeded under mild conditions, had good functional group tolerance with a broad scope of substrates, and afforded
A novel and efficient methodology for the construction of quinazolines based on supported copper oxide nanoparticles
作者:Jintang Zhang、Chenmin Yu、Sujing Wang、Changfeng Wan、Zhiyong Wang
DOI:10.1039/c002454f
日期:——
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.
Copper‐Catalyzed Three‐Component Cascade Reaction of Benzaldehyde with Benzylamine and Hydroxylamine or Aniline: Synthesis of 1,2,4‐Oxadiazoles and Quinazolines
作者:Chao Wang、Xiyan Rui、Dongjuan Si、Rupeng Dai、Yueyue Zhu、Hongmei Wen、Wei Li、Jian Liu
DOI:10.1002/adsc.202001535
日期:2021.6.8
The analogous three-component synthesis strategy for substituted 1,2,4-oxadiazole and quinazoline derivatives from readily available benzaldehyde, benzylamine and hydroxylamine or aniline has been developed. Both the cascade reaction sequences involves nucleophilic addition of C−N bond, introduction a halogen donor, nucleophilic substitution and Cu(II)-catalyzed aerobic oxidation. This synthesis methodology
A copper-catalyzed process for the synthesis of substituted quinazolinesfrom benzonitriles and 2-ethynylanilines using molecular oxygen (O2) as sole oxidant is described. The mild catalytic system enabled the effective cleavage of the C–C triple bond and construction of new C–N and C–C bonds in one operation. Furthermore, the compound N,N-dimethyl-4-(2-(4-(trifluoromethyl)phenyl)quinazolin-4-yl)aniline
Co(III)-Catalyzed Synthesis of Quinazolines via C–H Activation of <i>N</i>-Sulfinylimines and Benzimidates
作者:Fen Wang、He Wang、Qiang Wang、Songjie Yu、Xingwei Li
DOI:10.1021/acs.orglett.6b00227
日期:2016.3.18
as a synthon of nitriles, and subsequent coupling with arenes such as N-sulfinylimines and benzimidates bearing a functionalizable directing group provided facile access to two classes of quinazolines under Co(III)-catalysis.