28059-64-5Relevant articles and documents
Copper-Catalyzed Selective Arylation of Nitriles with Cyclic Diaryl Iodonium Salts: Direct Access to Structurally Diversified Diarylmethane Amides with Potential Neuroprotective and Anticancer Activities
Peng, Xiaopeng,Sun, Zhiqiang,Kuang, Peihua,Li, Ling,Chen, Jingxuan,Chen, Jianjun
, p. 5789 - 5795 (2020)
A novel, simple, and high-yielding approach for the preparation of diarylmethane amide derivatives has been developed by reacting cyclic diaryl iodonium salts with nitriles using CuCl as a catalyst. The procedure is efficient with high atom economy and a wide substrate range. Importantly, selective arylation of nitriles was obtained without affecting the phenyl amino/hydroxyl groups. Furthermore, two of the diarylmethane amides (3k, 3s) displayed excellent neuroprotective and anticancer activities.
Synthesis of Dihydroanthracenes via Palladium-Catalyzed Tandem Mizoroki-Heck/Reductive Heck Reactions Using Cyclic Diaryliodoniums and Alkenes
Peng, Xiaopeng,Yang, Jianfeng,Qiu, Xinhua,Duan, Yuansheng,Bao, Zeqing,Chen, Jingfeng
supporting information, p. 636 - 640 (2021/03/26)
An efficient Pd-catalyzed domino Mizoroki-Heck and reductive Heck reaction of terminal alkenes with six-membered cyclic diaryliodoniums is reported for the facile access to a diverse set of novel dihydroanthracenes. The scope of alkenes is general, leading to concise generation of 30 dihydroanthracenes which are not easily accessed by conventional methods. Furthermore, one of the newly synthesized dihydroanthracene displayed excellent antiproliferative activity against PANC-1 cancer cells (IC 50= 11.74 μM).
Preparation method of o-amino diphenylmethane
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Paragraph 0017; 0028; 0032-0034; 0038-0040; 0044-0046; 0050, (2019/09/17)
The invention relates to a preparation method of o-amino diphenylmethane, and belongs to the technical field of pharmaceutical synthesis. The preparation method comprises steps as follows: o-cyano-diphenylmethane is prepared from o-cyanobenzyl chloride and benzene through a reaction, then o-cyano-diphenylmethane is hydrolyzed in an aqueous solution of ethanediol, o-amide-diphenylmethane is obtained and is subjected to a rearrangement reaction with sodium hypochlorite, reduced-pressure distillation is performed, and o-amino diphenylmethane is obtained. O-amino diphenylmethane prepared with themethod is high in yield, the yield can reach 89% or above, meanwhile, a finished o-amino diphenylmethane product is high in purity, the purity can reach 99% or above, product quality is good, and defects of low purity and low yield of the product prepared with a traditional method are overcome. Besides, the preparation method is simple to operate and needs few steps, impurities in the product areeasy to separate and remove, and large-scale industrial production is facilitated.