{"id":3315,"date":"2021-04-12T00:00:00","date_gmt":"2021-04-11T16:00:00","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=3315"},"modified":"2021-04-12T00:00:00","modified_gmt":"2021-04-11T16:00:00","slug":"the-important-role-of-ethyl-5-amino-1-methyl-1h-pyrazole-4-carboxylate-4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=3315","title":{"rendered":"The important role of Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate"},"content":{"rendered":"

31037-02-2, name is Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Product Details of 31037-02-2<\/a><\/p>\n

Example 19A Ethyl 5-butylamino-1-methylpyrazole-4-carboxylate To ethyl 5-amino-1-methylpyrazole-4-carboxylate (3.4476 g, 20.38 mmol) in dimethylformamide (60 mL) at 0 C. was added a solution of 1.0M sodium bis(trimethylsilyl)amide in tetrahydrofuran (20.5 mL, 20.5 mmol). After 1 hour, 1-iodobutane (2.50 mL, 22.0 mmol) was added and the reaction was stirred at ambient temperature for 20 hours. The mixture was diluted with saturated aqueous sodium bicarbonate and extracted with ethyl acetate (6*). The combined organic extracts were then washed with water (2*) and brine, dried over sodium sulfate, filtered and evaporated under reduced pressure. Chromatography of the residue on silica gel eluding with 20% ethyl acetate in hexane afforded 3.8754 g (84%) of the desired product as a oil. TLC (20% ethyl acetate\/80% hexane) Rf =0.12. 1 H NMR (CDCl3, 300 MHz) d 0.94 (t, 3H), 1.33 (t, 3H), 1.35-1.50 (m, 2 H), 1.53-1.65 (m, 2H), 3.25 (t, 2H), 3.77 (s, 3H), 4.25 (q, 2H), 5.60-5.80 (br, 1H), 7.62 (s, 1H). MS (DCl\/NH3)m\/e 226 (M+H)+.<\/p>\n

The synthetic route of 31037-02-2 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 31037-02-2 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":[183,131],"tags":[126],"class_list":["post-3315","post","type-post","status-publish","format-standard","hentry","category-31037-02-2","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nThe important role of Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate<\/title>\n<meta name=\"description\" content=\"31037-02-2, name is Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. 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