{"id":5953,"date":"2021-08-20T03:06:42","date_gmt":"2021-08-19T19:06:42","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5953"},"modified":"2021-08-20T03:06:42","modified_gmt":"2021-08-19T19:06:42","slug":"the-important-role-of-c9h12n2o4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5953","title":{"rendered":"The important role of C9H12N2O4"},"content":{"rendered":"

Synthetic Route of 37687-24-4<\/a>, These common heterocyclic compound, 37687-24-4, name is Diethyl 3,5-pyrazoledicarboxylate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.<\/p>\n

To a solution of diethyl 1H-pyrazole-3,5-dicarboxylate (20.0 g, 94.2 mmol) in acetic acid (360 ml) was added dropwise sodium hypochlorite solution (220 ml, 9% in water). After stirring for 6 h at room temperature, the reaction mixture was concentrated under reduced pressure to remove acetic acid, and the remaining mixture was diluted with water (1000 ml). 1.0 M hydrochloric acid was added until pH 4 was reached, and the mixture was extracted with ethyl acetate (3 x 700 ml). The combined organic layers were washed with water and brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. Purification of the residue by flash- chromatography on silica gel (eluent: ethyl acetate\/petroleum ether 1 :1) afforded the title compound. Yield: 20.0 g (76% of theory, 88% purity). 1H-NMR (300 MHz, DMSO-d6): d [ppm] = 14.93 (br. s, 1H), 4.43-4.30 (m, 4H), 1.39-1.30 (m, 6H).<\/p>\n

Statistics shows that Diethyl 3,5-pyrazoledicarboxylate is playing an increasingly important role. we look forward to future research findings about 37687-24-4.<\/p>\n

Reference:
Patent; BAYER AKTIENGESELLSCHAFT; BAYER PHARMA AKTIENGESELLSCHAFT; MUeLLER, Steffen; SCHOHE-LOOP, Rudolf; ORTEGA, HERNANDEZ, Nuria; SUeSSMEIER, Frank; JIMENEZ NUNEZ, Eloisa; BRUMBY, Thomas; LINDNER, Niels; GERDES, Christoph; POOK, Elisabeth; BUCHMUeLLER, Anja; GAUGAZ, Fabienne, Zdenka; LANG, Dieter; ZIMMERMANN, Stefanie; EHRMANN, Alexander, Helmut, Michael; GERISCH, Michael; LEHMANN, Lutz; TIMMERMANN, Andreas; SCHAeFER, Martina; SCHMIDT, Georg; SCHLEMMER, Karl-Heinz; FOLLMANN, Markus; KERSTEN, Elisabeth; WANG, Vivian; GAO, Xiang; WANG, Yafeng; (801 pag.)WO2019\/219517; (2019); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

Statistics shows that Diethyl 3,5-pyrazoledicarboxylate is playing an increasingly important role. we look forward to future research findings about 37687-24-4.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[291,131],"tags":[127],"class_list":["post-5953","post","type-post","status-publish","format-standard","hentry","category-37687-24-4","category-pyrazoles-derivatives","tag-m-w200-300"],"yoast_head":"\nThe important role of<\/title>\n<meta name=\"description\" content=\"Synthetic Route of 37687-24-4, These common heterocyclic compound, 37687-24-4, name is Diethyl 3,5-pyrazoledicarboxylate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.\" \/>\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=5953\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The important role of\" \/>\n<meta property=\"og:description\" content=\"Synthetic Route of 37687-24-4, These common heterocyclic compound, 37687-24-4, name is Diethyl 3,5-pyrazoledicarboxylate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=5953\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-19T19:06:42+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=5953\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5953\",\"name\":\"The important role of\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-08-19T19:06:42+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Synthetic Route of 37687-24-4, These common heterocyclic compound, 37687-24-4, name is Diethyl 3,5-pyrazoledicarboxylate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5953#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=5953\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5953#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"The important role of C9H12N2O4\"}]},{\"@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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