{"id":1808,"date":"2021-02-20T05:05:32","date_gmt":"2021-02-19T21:05:32","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=1808"},"modified":"2021-02-20T05:05:32","modified_gmt":"2021-02-19T21:05:32","slug":"brief-introduction-of-70951-85-8","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=1808","title":{"rendered":"Brief introduction of 70951-85-8"},"content":{"rendered":"

Reference of 70951-85-8<\/a>,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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 an oven dried, N2-flushed, small round bottom flask was added 4-bromo-1-(tert-butyl)-1H-pyrazole (0.396 g, 1.95 mmol). The flask was sealed and purged with nitrogen. 5 mL anhydrous THF was added and the reaction was cooled to -78 C. n-Butyl lithium (0.93 mL, 2.24 mmol) was added and the reaction was stirred at -78 C. for 30 minutes. 2-(4-cyclohexyl-3,4-dimethyl-2,5-dioxoimidazolidin-1-yl)acetaldehyde (112b) (0.446 g, 1.77 mmol) in 3 mL was then added to the flask at -78 C. The reaction was stirred for 2 hours at -78 C. and quenched with water. The mixture was extracted with ethyl acetate (3\u00a1\u00c110 mL). The combined organics were dried with Na2SO4. The solvent was evaporated, and the residue was purified by column chromatography utilizing a Silicycle column (12 g) and elution with 20-100% ethyl acetate\/hexane to afford 200 mg (50%) of product as an off white solid.<\/p>\n

The synthetic route of 70951-85-8 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 70951-85-8 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":[341,131],"tags":[127],"class_list":["post-1808","post","type-post","status-publish","format-standard","hentry","category-70951-85-8","category-pyrazoles-derivatives","tag-m-w200-300"],"yoast_head":"\nBrief introduction of 70951-85-8<\/title>\n<meta name=\"description\" content=\"Reference of 70951-85-8,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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=\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Brief introduction of 70951-85-8\" \/>\n<meta property=\"og:description\" content=\"Reference of 70951-85-8,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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=\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-02-19T21:05:32+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\":\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808\",\"url\":\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808\",\"name\":\"Brief introduction of 70951-85-8\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-02-19T21:05:32+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Reference of 70951-85-8,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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\":\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/www.pyrazoles-derivatives.com\/?p=1808#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Brief introduction of 70951-85-8\"}]},{\"@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. Pyrazole derivatives play an important role in antitumor agents.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.pyrazoles-derivatives.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\",\"name\":\"Jessica.F\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/en.cravatar.com\/avatar\/2d1cec2a99eeaad5a5b217c9cdbfb610?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/en.cravatar.com\/avatar\/2d1cec2a99eeaad5a5b217c9cdbfb610?s=96&d=mm&r=g\",\"caption\":\"Jessica.F\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Brief introduction of 70951-85-8","description":"Reference of 70951-85-8,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/www.pyrazoles-derivatives.com\/?p=1808","og_locale":"en_US","og_type":"article","og_title":"Brief introduction of 70951-85-8","og_description":"Reference of 70951-85-8,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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.","og_url":"http:\/\/www.pyrazoles-derivatives.com\/?p=1808","og_site_name":"pyrazoles-derivatives","article_published_time":"2021-02-19T21:05:32+00:00","author":"Jessica.F","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Jessica.F","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"http:\/\/www.pyrazoles-derivatives.com\/?p=1808","url":"http:\/\/www.pyrazoles-derivatives.com\/?p=1808","name":"Brief introduction of 70951-85-8","isPartOf":{"@id":"https:\/\/www.pyrazoles-derivatives.com\/#website"},"datePublished":"2021-02-19T21:05:32+00:00","author":{"@id":"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1"},"description":"Reference of 70951-85-8,Some common heterocyclic compound, 70951-85-8, name is 4-Bromo-1-(tert-butyl)-1H-pyrazole, molecular formula is C7H11BrN2, 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":"http:\/\/www.pyrazoles-derivatives.com\/?p=1808#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["http:\/\/www.pyrazoles-derivatives.com\/?p=1808"]}]},{"@type":"BreadcrumbList","@id":"http:\/\/www.pyrazoles-derivatives.com\/?p=1808#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.pyrazoles-derivatives.com\/"},{"@type":"ListItem","position":2,"name":"Brief introduction of 70951-85-8"}]},{"@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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