{"id":6019,"date":"2021-08-25T03:09:45","date_gmt":"2021-08-24T19:09:45","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=6019"},"modified":"2021-08-25T03:09:45","modified_gmt":"2021-08-24T19:09:45","slug":"discovery-of-14-dimethylpyrazole-3","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=6019","title":{"rendered":"Discovery of 1,4-Dimethylpyrazole"},"content":{"rendered":"

Synthetic Route of 1072-68-0<\/a>,Some common heterocyclic compound, 1072-68-0, name is 1,4-Dimethylpyrazole, molecular formula is C5H8N2, 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 1,4-dimethyl-pyrazole (10 g, 104.03 mmol) in DMF (150 mL) was added NIS (21.06 g, 93.63 mmol) in one portion at 25 C under ?. The mixture was stirred at 60 C for 12 h. The mixture was poured into ice-water (300 mL) and stirred for 5 min. The aqueous phase was extracted with MTBE (3 chi 300 mL). The combined organic phase was washed with brine (3 chi 200 mL), dried over anhydrous Na2SO\/j, filtered and concentrated under reduced pre ssure . The re sidue was purified by silica gel column chromatography (PE : EtO Ac= 10 : 1 – 1 : 1 ) to give 3-iodo- 1,4-dimethyl-pyrazole as a brown solid. lH NMR (400 MHz, CDC33): delta ppm 7.05 (s, 1 H), 3.86 (s. 3 1 1). 1.98 (s, 3H).<\/p>\n

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1,4-Dimethylpyrazole, its application will become more common.<\/p>\n

Reference:
Patent; DENALI THERAPEUTICS INC.; ESTRADA, Anthony A.; FENG, Jianwen A.; LYSSIKATOS, Joseph P.; SWEENEY, Zachary K.; DE VICENTE FIDALGO, Javier; (271 pag.)WO2017\/87905; (2017); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1,4-Dimethylpyrazole, its application will become more common.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179,131],"tags":[145],"class_list":["post-6019","post","type-post","status-publish","format-standard","hentry","category-1072-68-0","category-pyrazoles-derivatives","tag-m-w0-100"],"yoast_head":"\nDiscovery of<\/title>\n<meta name=\"description\" content=\"Synthetic Route of 1072-68-0,Some common heterocyclic compound, 1072-68-0, name is 1,4-Dimethylpyrazole, molecular formula is C5H8N2, 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=6019\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Discovery of\" \/>\n<meta property=\"og:description\" content=\"Synthetic Route of 1072-68-0,Some common heterocyclic compound, 1072-68-0, name is 1,4-Dimethylpyrazole, molecular formula is C5H8N2, 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=6019\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-24T19:09:45+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=6019\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=6019\",\"name\":\"Discovery of\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-08-24T19:09:45+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Synthetic Route of 1072-68-0,Some common heterocyclic compound, 1072-68-0, name is 1,4-Dimethylpyrazole, molecular formula is C5H8N2, 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=6019#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=6019\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=6019#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Discovery of 1,4-Dimethylpyrazole\"}]},{\"@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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