{"id":2051,"date":"2021-03-08T05:23:37","date_gmt":"2021-03-07T21:23:37","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=2051"},"modified":"2021-03-08T05:23:37","modified_gmt":"2021-03-07T21:23:37","slug":"application-of-5334-40-7","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=2051","title":{"rendered":"Application of 5334-40-7"},"content":{"rendered":"

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 5334-40-7, name is 4-Nitro-1H-pyrazole-3-carboxylic acid, A new synthetic method of this compound is introduced below., Safety of 4-Nitro-1H-pyrazole-3-carboxylic acid<\/a><\/p>\n

A solution of 4-nitro-lH-pyrazole-3-carboxylic acid (1.0 g, 6.4 mmol) in dichloromethane (20 ml) was treated with thionyl chloride (1.4 ml, 19 mmol) and a drop of DMF at ambient temperature. The reaction mixture is stirred at 40\u00a1\u00e3C overnight whereupon another equivalent of thionyl chloride (0.46 ml, 6.4 mmol) was added and stirring was continued at 40\u00a1\u00e3C for another 24h. All volatiles were removed and the acid chloride was suspended in dichloromethane (6 ml) and cooled to 0\u00a1\u00e3C. Triethylamine (4.44 ml, 31.8 mmol) and dimethylamin (4.14 ml, 2M solution in THF) were added. The reaction mixture was allowed to warm-up to ambient temperature and stirring was continued for 3h. The reaction mixture was partitioned between potassium hydrogen sulfate (20 ml, 10percent aqueous solution) and ethyl acetate (40 ml) and extracted. The organic phase was washed with water and brine, dried and the solvent was evaporated. The crude product was triturated with diethylether, sucked off and dried to yield a light brown solid (0.35 g, 30 percent).MS: M = 185.1 (M+H)+<\/p>\n

The synthetic route of 5334-40-7 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 5334-40-7 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":[153,131],"tags":[126],"class_list":["post-2051","post","type-post","status-publish","format-standard","hentry","category-5334-40-7","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nApplication of 5334-40-7<\/title>\n<meta name=\"description\" content=\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 5334-40-7, name is 4-Nitro-1H-pyrazole-3-carboxylic acid, A new synthetic method of this compound is introduced below., Safety of 4-Nitro-1H-pyrazole-3-carboxylic acid\" \/>\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=2051\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Application of 5334-40-7\" \/>\n<meta property=\"og:description\" content=\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. 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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:\/\/weavatar.com\/avatar\/2d1cec2a99eeaad5a5b217c9cdbfb610?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/weavatar.com\/avatar\/2d1cec2a99eeaad5a5b217c9cdbfb610?s=96&d=mm&r=g\",\"caption\":\"Jessica.F\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Application of 5334-40-7","description":"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. 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