{"id":11026,"date":"2022-11-16T03:25:06","date_gmt":"2022-11-15T19:25:06","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=11026"},"modified":"2022-11-16T03:25:06","modified_gmt":"2022-11-15T19:25:06","slug":"umetani-shigeos-team-published-research-in-bulletin-of-the-chemical-society-of-japan-in-1983-11-30-cas-1691-93-6","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=11026","title":{"rendered":"Umetani, Shigeo’s team published research in Bulletin of the Chemical Society of Japan in 1983-11-30 | CAS: 1691-93-6"},"content":{"rendered":"

Umetani, Shigeo published the artcileLiquid-liquid distribution of 4-acyl-3-methyl-1-phenyl-5-pyrazolones and their zinc complexes<\/i><\/b>, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one<\/a>, the main research area is acylmethylphenylpyrazolone partition aqueous cyclohexane; zinc acylmethylphenylpyrazolone partition aqueous cyclohexane.<\/p>\n

The distribution of 8 4-acyl-3-methyl-1-phenyl-5-pyrazolones and their Zn complexes between aqueous and cyclohexane phases was investigated. The acid dissociation constants and partition constants of the extractants were discussed in terms of a substituent effect. Two series of examined reagents in which one has an aromatic substituent at the 4-position of 5-pyrazolone, and the other an aliphatic one give similar extraction constants Since their acid dissociation constants are essentially the same, a relationship, log PMA = 2 log PHA + constant, is postulated. The extraction constant of a fluorinated reagent which has a considerably small pKa value is also similar to that of the reagents having aliphatic substituents.<\/p>\n

Bulletin of the Chemical Society of Japan published new progress about Ionization. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one<\/a>.<\/p>\n

Referemce:
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Bulletin of the Chemical Society of Japan published new progress about Ionization. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one<\/a>.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[775,131],"tags":[740],"class_list":["post-11026","post","type-post","status-publish","format-standard","hentry","category-1691-93-6","category-pyrazoles-derivatives","tag-m-w250-300"],"yoast_head":"\nUmetani, Shigeo's team published research in Bulletin of the Chemical Society of Japan in 1983-11-30 | CAS: 1691-93-6 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"Umetani, Shigeo published the artcileLiquid-liquid distribution of 4-acyl-3-methyl-1-phenyl-5-pyrazolones and their zinc complexes, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is acylmethylphenylpyrazolone partition aqueous cyclohexane; zinc acylmethylphenylpyrazolone partition aqueous cyclohexane.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Umetani, Shigeo's team published research in Bulletin of the Chemical Society of Japan in 1983-11-30 | CAS: 1691-93-6 | pyrazoles-derivatives\" \/>\n<meta property=\"og:description\" content=\"Umetani, Shigeo published the artcileLiquid-liquid distribution of 4-acyl-3-methyl-1-phenyl-5-pyrazolones and their zinc complexes, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is acylmethylphenylpyrazolone partition aqueous cyclohexane; zinc acylmethylphenylpyrazolone partition aqueous cyclohexane.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-15T19:25:06+00:00\" \/>\n<meta name=\"author\" content=\"Jessica.F\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jessica.F\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026\",\"name\":\"Umetani, Shigeo's team published research in Bulletin of the Chemical Society of Japan in 1983-11-30 | CAS: 1691-93-6 | pyrazoles-derivatives\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2022-11-15T19:25:06+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Umetani, Shigeo published the artcileLiquid-liquid distribution of 4-acyl-3-methyl-1-phenyl-5-pyrazolones and their zinc complexes, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is acylmethylphenylpyrazolone partition aqueous cyclohexane; zinc acylmethylphenylpyrazolone partition aqueous cyclohexane.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=11026#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Umetani, Shigeo’s team published research in Bulletin of the Chemical Society of Japan in 1983-11-30 | CAS: 1691-93-6\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/\",\"name\":\"pyrazoles-derivatives\",\"description\":\"Several pyrazole derivatives possess important pharmacological activities and they have been proved useful materials in drug research. 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