{"id":4905,"date":"2021-06-23T03:17:40","date_gmt":"2021-06-22T19:17:40","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4905"},"modified":"2021-06-23T03:17:40","modified_gmt":"2021-06-22T19:17:40","slug":"simple-exploration-of-c4h7n3","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4905","title":{"rendered":"Simple exploration of C4H7N3"},"content":{"rendered":"

Some common heterocyclic compound, 31230-17-8, name is 5-Methyl-1H-pyrazol-3-amine, molecular formula is C4H7N3, 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. Recommanded Product: 31230-17-8<\/a><\/p>\n

1.1 -Diniethylethyl 3-amino-5-methyl- lH-pyrazole- 1 -carboxylate; 5-Methyl-lH-pyrazol-3-amine (800 mg, 8.25 mmol) was dissolved in DMF (10 mL) at 0 0C and treated with sodium hydride (336 mg, 8.25 mmol) followed by stirring for a further 30 minutes. Warmed di-tert-butyl dicarbonate (1.80 g, 8.25 mmol) was then slowly added via syringe over 5 min and the reaction was allowed to warm to RT and stirred for a further 1 hour. The reaction was taken up in saturated aqueous sodium hydrogencarbonate (50 mL) and ethyl acetate (100 mL). The organic layer was separated then dried (MgSO4), filtered and evaporated. Purification by column chromatography,eluting with 50-100percent ethyl acetate in isohexane, afforded the title compound as a colourless oil (380 mg). 1R NMR delta (CDCl3): 1.62 (s, 9Eta), 2.43 (s, 3H), 3.87 (s, 2H), 5.60 (s, IH)<\/p>\n

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 31230-17-8, its application will become more common.<\/p>\n

Reference:
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2007\/17649; (2007); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 31230-17-8, its application will become more common.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[207,131],"tags":[145],"class_list":["post-4905","post","type-post","status-publish","format-standard","hentry","category-31230-17-8","category-pyrazoles-derivatives","tag-m-w0-100"],"yoast_head":"\nSimple exploration of<\/title>\n<meta name=\"description\" content=\"Some common heterocyclic compound, 31230-17-8, name is 5-Methyl-1H-pyrazol-3-amine, molecular formula is C4H7N3, 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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