{"id":1219,"date":"2020-12-14T15:41:56","date_gmt":"2020-12-14T07:41:56","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=1219"},"modified":"2020-12-14T15:41:56","modified_gmt":"2020-12-14T07:41:56","slug":"extracurricular-laboratory-synthetic-route-of-3-isopropylpyrazole","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=1219","title":{"rendered":"Extracurricular laboratory: Synthetic route of 3-Isopropylpyrazole"},"content":{"rendered":"

As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 49633-25-2 name is 3-Isopropylpyrazole, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. 49633-25-2<\/a><\/p>\n

Part A – 4-Bromo-3-isopropylpyrazole To a stirred solution of sodium acetate (19.7 g., 0.24 mole) in acetic acid (100 ml.) and water (15 ml.), 3-isopropylpyrazole (11.0 g., 0.1 mole) was added, followed by dropwise addition of bromine (16.0 g., 0.11 mole) keeping the internal temperature below 15 C. The mixture was kept at 25 C. for 15 hours, treated with water (200 ml.) and extracted with ethyl ether (3 * 50 ml.), and the ether layer washed with water (1 * 50 ml.) dried, (sodium sulfate) and evaporated under reduced pressure. The resultant pale yellow oil was distilled to give 4-bromo-3-isopropylpyrazole (15.3 g., 81%) with a boiling point of 85 C. at 0.06 mm Hg. Analysis: Calc’d. for C6 H9 BrN2: C, 38.11; H, 4.80; N, 14.82; Br, 42.27. Found: C, 37.91; H, 4.89; N, 14.83; Br, 42.15.<\/p>\n

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Isopropylpyrazole, and friends who are interested can also refer to it.<\/p>\n","protected":false},"excerpt":{"rendered":"

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Isopropylpyrazole, and friends who are interested can also refer to it.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[230,131],"tags":[126],"class_list":["post-1219","post","type-post","status-publish","format-standard","hentry","category-49633-25-2","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nExtracurricular laboratory: Synthetic route of 3-Isopropylpyrazole<\/title>\n<meta name=\"description\" content=\"As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 49633-25-2 name is 3-Isopropylpyrazole, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. 49633-25-2\" \/>\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=1219\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Extracurricular laboratory: Synthetic route of 3-Isopropylpyrazole\" \/>\n<meta property=\"og:description\" content=\"As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 49633-25-2 name is 3-Isopropylpyrazole, This compound is widely used in many fields, so it is necessary to find a new synthetic route. 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