{"id":11763,"date":"2022-12-02T03:56:09","date_gmt":"2022-12-01T19:56:09","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=11763"},"modified":"2022-12-02T03:56:09","modified_gmt":"2022-12-01T19:56:09","slug":"liu-deng-fengs-team-published-research-in-canadian-journal-of-chemistry-in-92-cas-4551-69-3","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=11763","title":{"rendered":"Liu, Deng-Feng&#8217;s team published research in Canadian Journal of Chemistry  in 92 | CAS: 4551-69-3"},"content":{"rendered":"<p>Liu, Deng-Feng published the artcile<b><i>Ring-opening copolymerization of epoxide and dianhydride in the presence of manganese(III) asymmetrical bis-Schiff base catalysts<\/i><\/b>,  <a href=\"https:\/\/www.ambeed.com\/products\/4551-69-3.html\">Related Products of pyrazoles-derivatives<\/a>,  the publication is  Canadian Journal of Chemistry (2014), 92(11), 1098-1105, database is CAplus.<\/p>\n<p>Based on a series of asym. bis-Schiff base H<sub>2<\/sub>L<sup>n<\/sup> (n = 1-4) ligands with different electronic and steric effects, a series of [Mn(L<sup>n<\/sup>)Cl] complexes 1-4 are obtained and shown to be effective catalysts in ring-opening copolymerization of epoxides and dianhydrides. Through the structure design, the input of electron-withdrawing bromine substituent para to the phenoxide group of the complexes is considerately beneficial to the improved activities. Moreover, steric and electronic effects of the suitable MeO substituent at the ortho orientation on the phenoxide group may both play a role in the formation of alternating ring-opening copolymers under the identical reaction conditions. In three cocatalysts tested, n-Bu<sub>4<\/sub>NBr is pos. to monomer conversion and chain growth of polymer.<\/p>\n<p>Canadian Journal of Chemistry published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, <a href=\"https:\/\/www.ambeed.com\/products\/4551-69-3.html\">Related Products of pyrazoles-derivatives<\/a>.<\/p>\n<p>Referemce:<br \/><a href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrazole\">https:\/\/en.wikipedia.org\/wiki\/Pyrazole<\/a>,<br \/><a href=\"Pyrazole - Wikipedia\">Pyrazoles &#8211; an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Canadian Journal of Chemistry published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, <a href=\"https:\/\/www.ambeed.com\/products\/4551-69-3.html\">Related Products of pyrazoles-derivatives<\/a>.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[808,131],"tags":[740],"class_list":["post-11763","post","type-post","status-publish","format-standard","hentry","category-4551-69-3","category-pyrazoles-derivatives","tag-m-w250-300"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - 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