{"id":4991,"date":"2021-06-28T03:46:57","date_gmt":"2021-06-27T19:46:57","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4991"},"modified":"2021-06-28T03:46:57","modified_gmt":"2021-06-27T19:46:57","slug":"the-important-role-of-4-bromo-1-methyl-1h-pyrazol-3-amine","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4991","title":{"rendered":"The important role of 4-Bromo-1-methyl-1H-pyrazol-3-amine"},"content":{"rendered":"

Electric Literature of 146941-72-2<\/a>, A common heterocyclic compound, 146941-72-2, name is 4-Bromo-1-methyl-1H-pyrazol-3-amine, molecular formula is C4H6BrN3, 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

EXAMPLE 3 Preparation of N-(4-bromo-1-methylpyrazol-3-yl)-7-chloro-5-methoxy-1,2,4-triazolo-[1,5-c]pyrimidine-2-sulfonamide Pyridine (1.08 g, 8 mmol) and dimethyl sulfoxide (0.2 g) were added to a solution of 7-chloro-5-methoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonyl chloride (1.0 g, 4.0 mmol) and 3-amino-4-bromo-1-methylpyrazole (0.7 g, 4.0 mmol) in 10 mL of acetonitrile with stirring at ambient temperature and the mixture was allowed to react overnight. The mixture was then concentrated by evaporation under reduced pressure and the residue was taken up in methylene chloride. The resulting solution was extracted with water and dried over MgSO4. The volatile materials were then removed by evaporation under reduced pressure and the solid residue was extracted with diethyl ether and with water, recovered by filtration, and dried under reduced pressure to obtain 0.38 g (25 percent yield) of the title compound as a white solid melting at 230-232 C.<\/p>\n

The synthetic route of 146941-72-2 has been constantly updated, and we look forward to future research findings.<\/p>\n

Reference:
Patent; DowElanco; US5177206; (1993); A;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 146941-72-2 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[344,131],"tags":[126],"class_list":["post-4991","post","type-post","status-publish","format-standard","hentry","category-146941-72-2","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nThe important role of<\/title>\n<meta name=\"description\" content=\"Electric Literature of 146941-72-2, A common heterocyclic compound, 146941-72-2, name is 4-Bromo-1-methyl-1H-pyrazol-3-amine, molecular formula is C4H6BrN3, 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=4991\" \/>\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=\"Electric Literature of 146941-72-2, A common heterocyclic compound, 146941-72-2, name is 4-Bromo-1-methyl-1H-pyrazol-3-amine, molecular formula is C4H6BrN3, 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=4991\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-06-27T19:46:57+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=4991\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=4991\",\"name\":\"The important role of\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-06-27T19:46:57+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Electric Literature of 146941-72-2, A common heterocyclic compound, 146941-72-2, name is 4-Bromo-1-methyl-1H-pyrazol-3-amine, molecular formula is C4H6BrN3, 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=4991#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=4991\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=4991#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"The important role of 4-Bromo-1-methyl-1H-pyrazol-3-amine\"}]},{\"@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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