《Physically mixed catalytic system of amino and sulfo-functional porous organic polymers as efficiently synergistic co-catalysts for one-pot cascade reactions》 was written by Sun, Zunming; Liu, Fuyao; Yang, Xinyue; Huang, Xianpei; Zhang, Mengmeng; Bian, Guomin; Qi, Yonglin; Yang, Xinlin; Zhang, Wangqing. Quality Control of Ethyl 3-oxopentanoateThis research focused onvinylsulfonate vinylbenzylamine polymer phys mixture recyclable catalyst; cyclohexenone arylidenecyanoacetate arylidenemalononitrile preparation; polymer mixture recyclable catalyst deacetalization Knoevenagel rearrangement reaction; dimethoxymethylbenzene tandem deacetalization Knoevenagel reaction recyclable polymer mixture catalyst; pyrancarboxylate rearrangement recyclable polymer mixture catalyst. The article conveys some information:
In this article, acid/base bi-functional polymeric materials were prepared using phys. mixed porous poly(divinylbenzene-co-4-vinylbenzenesulfonic acid) (P(DVB-VBS)) with sulfonic acid groups and poly(divinylbenzene-co-4-vinylbenzyl amine) (P(DVB-VBA)) with amino groups, which were synthesized by solvothermal polymerization of crosslinker DVB with either Ph 4-vinylbenzenesulfonate (PVBS) or 4-vinylbenzyl amine hydrochloride (VBAH) functional monomers together with subsequent hydrolyzation or alk. treatment. The bi-functional polymeric materials were utilized as a synergistic catalytic system for one-pot cascade reactions including deacetalization-Henry condensation reaction, deacetalization-Knoevenagel condensation reaction and the transformation of 3,4-dihydropyran derivatives to α-ester cyclohexenone compounds The crosslinked polymeric frameworks effectively isolated sulfonic acid and primary amine groups to ensure their roles as both acid and base catalyst simultaneously in a one-pot system. The hierarchical porosity of a phys. mixed acid/base co-catalyst system provided the possibility for the multi-step transformation of more complex substrates. The results came from multiple reactions, including the reaction of Ethyl 3-oxopentanoate(cas: 4949-44-4Quality Control of Ethyl 3-oxopentanoate)
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.Quality Control of Ethyl 3-oxopentanoate
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