《A Zirconium Indazole Carboxylate Coordination Polymer as an Efficient Catalyst for Dehydrogenation-Cyclization and Oxidative Coupling Reactions》 was written by Sang, Xinxin; Hu, Xinyu; Tao, Rong; Zhang, Yilin; Zhu, Haiyan; Wang, Dawei. Category: alcohols-buliding-blocksThis research focused onzirconium indazole carboxylate coordination polymer catalyst preparation; disubstituted benzimidazole preparation; phenylenediamine benzyl alc dehydrogenative cyclization zirconium catalyst; alkyl ester preparation; benzyl cyanide alkyl hydroperoxide oxidative coupling zirconium catalyst. The article conveys some information:
A novel porous zirconium coordination polymer (Zr-IDA) from 1-(carboxymethyl)-1H-indazole-5-carboxylic acid was developed and characterized. The Zr-IDA catalyst contains porous and highly crystalline particles with a quasi-spherical morphol. around 100 nm in size and Zr was coordinated with both O and N as shown by FT-IR and XPS measurements. The catalyst showed good catalytic activity in the synthesis of 1,2-disubstituted-benzimidazoles I [R = Ph, 4-MeC6H4, 2-thienyl, etc.; R1 = H, Me] via dehydrogenative cyclization reaction of benzyl alcs. with phenylenediamines. Similarly, alkyl-esters R2C(O)OC(CH3)2R3 [R2 = Ph, 4-MeC6H4, 2-naphthyl, etc.; R3 = Me, Et, Ph] were synthesized via oxidative coupling of benzyl cyanides with alkyl-hydroperoxides. Mechanistic investigations were carried out to study these reactions and the developed catalytic system in more detail.(4-Bromophenyl)methanol(cas: 873-75-6Category: alcohols-buliding-blocks) was used in this study.
(4-Bromophenyl)methanol(cas: 873-75-6) undergoes three-component reaction with acetylferrocene and arylboronic acid to give ferrocenyl ketones containing biaryls.Category: alcohols-buliding-blocks It undergoes oxidation reaction in the presence of polyvinylpolypyrrolidone-supported hydrogen peroxide, silica sulfuric acid and ammonium bromide to yield 4-bromobenzaldehyde.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts