{"id":5936,"date":"2021-08-19T03:07:22","date_gmt":"2021-08-18T19:07:22","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5936"},"modified":"2021-08-19T03:07:22","modified_gmt":"2021-08-18T19:07:22","slug":"brief-introduction-of-c4h5in2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5936","title":{"rendered":"Brief introduction of C4H5IN2"},"content":{"rendered":"

Electric Literature of 34091-51-5<\/a>, These common heterocyclic compound, 34091-51-5, name is 5-Iodo-1-methyl-1H-pyrazole, 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

PREPARATION 665-lodo-1 -methyl-1 H-pyrazole-4-carbaldehydeTo a cooled (0 C) solution of 5-iodo-1 -methyl-1 H-pyrazole (1.3 g, 6.3 mmol) in dimethyl formamide (2 mL), under an atmosphere of nitrogen, was added phosphorusoxychloride (1.72 mL, 18.8 mmol, 3.0 eq.). The resulting mixture was stirred at room temperature for 4hr before partitioning between ethyl acetate (80 mL) and 2M aqueous potassium carbonate (80 mL). The aqueous layer was extracted again with ethyl acetate (80 mL). The organic extracts were combined and washed with water (3 x 50 mL) and then dried over magnesium sulphate. The resulting mixture was filtered and the filtrate evaporated under reduced pressure to give the title compound as an orange solid (0.58 g, 39%).LRMS: ESI, m\/z 337 [M+H] +<\/p>\n

The synthetic route of 34091-51-5 has been constantly updated, and we look forward to future research findings.<\/p>\n

Reference:
Patent; PFIZER INC.; BUNNAGE, Mark, Edward; COOK, Andrew, Simon; CUI, Jingrong, Jean; DACK, Kevin, Neil; DEAL, Judith, Gail; GU, Danlin; HE, Mingying; JOHNSON, Patrick, Stephen; JOHNSON, Ted, William; LE, Phuong, Thi, Quy; PALMER, Cynthia, Louise; SHEN, Hong; WO2011\/138751; (2011); A2;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 34091-51-5 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":[273,131],"tags":[127],"class_list":["post-5936","post","type-post","status-publish","format-standard","hentry","category-34091-51-5","category-pyrazoles-derivatives","tag-m-w200-300"],"yoast_head":"\nBrief introduction of<\/title>\n<meta name=\"description\" content=\"Electric Literature of 34091-51-5, These common heterocyclic compound, 34091-51-5, name is 5-Iodo-1-methyl-1H-pyrazole, 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=5936\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Brief introduction of\" \/>\n<meta property=\"og:description\" content=\"Electric Literature of 34091-51-5, These common heterocyclic compound, 34091-51-5, name is 5-Iodo-1-methyl-1H-pyrazole, 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=5936\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-18T19:07:22+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=5936\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5936\",\"name\":\"Brief introduction of\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-08-18T19:07:22+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Electric Literature of 34091-51-5, These common heterocyclic compound, 34091-51-5, name is 5-Iodo-1-methyl-1H-pyrazole, 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=5936#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=5936\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5936#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Brief introduction of C4H5IN2\"}]},{\"@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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