{"id":4318,"date":"2021-05-27T03:56:11","date_gmt":"2021-05-26T19:56:11","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4318"},"modified":"2021-05-27T03:56:11","modified_gmt":"2021-05-26T19:56:11","slug":"the-important-role-of-c5h9n3","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4318","title":{"rendered":"The important role of C5H9N3"},"content":{"rendered":"

These common heterocyclic compound, 3524-32-1, name is 5-Amino-1,3-dimethylpyrazole, 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. Safety of 5-Amino-1,3-dimethylpyrazole<\/a><\/p>\n

General procedure: 3-methyl-1-phenyl-1H-pyrazol-5-amine (1 mmol, 173 mg) and acetophenone (1.5 mmol, 180 mg), CuI (10 mol %, 19 mg) and FeCl3.6H2O (10 mol %, 27 mg) were added in DMSO (2 mL) at 120C in a round-bottom flask equipped with a magnetic stirring bar and a reflux condenser. After completion of the reaction the organic mixture was extracted with ethyl acetate (3×50 mL) and then washed with brine solution. The organic fraction was dried with anhydrous sodium sulphate and concentrated in rotavapor under vacuum. The product was purified by column chromatography using silica gel (100-200 mesh, ethyl acetate\/hexane as eluent).<\/p>\n

The synthetic route of 5-Amino-1,3-dimethylpyrazole has been constantly updated, and we look forward to future research findings.<\/p>\n

Reference:
Article; Rastogi, Gaurav K.; Saikia, B-Shriya; Pahari, Pallab; Deb, Mohit L.; Baruah, Pranjal K.; Tetrahedron Letters; vol. 60; 17; (2019); p. 1189 – 1192;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 5-Amino-1,3-dimethylpyrazole 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":[139,131],"tags":[126],"class_list":["post-4318","post","type-post","status-publish","format-standard","hentry","category-3524-32-1","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nThe important role of<\/title>\n<meta name=\"description\" content=\"These common heterocyclic compound, 3524-32-1, name is 5-Amino-1,3-dimethylpyrazole, 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. 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