2876-18-8Relevant articles and documents
Adenine supported hydroxyl-bridged dicopper core as a catalytically competent unit for phenol oxidation
Mishra, Ashutosh Kumar,Prajapati, Rajneesh Kumar,Verma, Sandeep
, p. 1385 - 1390 (2013)
This communication describes crystallographic investigation of a dicopper complex of modified adenine nucleobase containing a Cu2O2 core. This arrangement is remarkably similar to active sites present in some copper-containing redox enzymes. Interestingly, this complex is also competent in catalyzing redox reactions, suggesting the possibility of catalytically competent primitive metal-nucleobase systems.
Direct synthesis of novel quinoxaline derivativesviapalladium-catalyzed reductive annulation of catechols and nitroarylamines
Xie, Feng,Li, Yibiao,Chen, Xiuwen,Chen, Lu,Zhu, Zhongzhi,Li, Bin,Huang, Yubing,Zhang, Kun,Zhang, Min
supporting information, p. 5997 - 6000 (2020/06/04)
Here, a palladium-catalyzed new hydrogenative annulation reaction of catechols and nitroarylamines, allowing straightforward access to two classes of novel quinoxaline derivatives, is reported. The reaction proceeds with operational simplicity, an easily available catalyst system, and a broad substrate scope, and without the need for pre-functionalization, which offers the potential for further design of new reductive transformations of renewable resources into value-added products.
Reactivity and substituent effects in the cyclization of N-aryl-2-nitrosoanilines to phenazines
Wróbel, Zbigniew,Plichta, Karolina,Kwast, Andrzej
, p. 3147 - 3152 (2017/05/08)
Reactivity of variously substituted N-aryl-2-nitrosoanilines in the reaction of cyclization leading to phenazine derivatives, carried out in the presence of N,O-bis(trimethylsilyl)acetamide (BSA), was estimated on the base of the observed reaction times. A strong opposite effect of substituents located at position para to the nitroso group and those located para to the amino group in the side ring was observed. Mechanistic explanation, based on the electronic properties of the substituents and their mesomeric effects, was presented. The usefulness of the obtained data for the designed syntheses of phenazines was exposed.