{"id":4871,"date":"2021-06-22T03:39:49","date_gmt":"2021-06-21T19:39:49","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4871"},"modified":"2021-06-22T03:39:49","modified_gmt":"2021-06-21T19:39:49","slug":"some-tips-on-20154-03-4-2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4871","title":{"rendered":"Some tips on 20154-03-4"},"content":{"rendered":"

20154-03-4, name is 3-(Trifluoromethyl)-1H-pyrazole, 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. name: 3-(Trifluoromethyl)-1H-pyrazole<\/a><\/p>\n

Step A: Preparation of N,N-dimethyl-3-(trifluoromethyl)-1H-pyrazole-1-sulfonamide To a solution of 3-trifluoromethylpyrazole (5.0 g, 36 mmol), triethylamine (7.0 mL, 50 mmol) in dichloromethane (40 mL) was added dimethylsulfamoyl chloride (5.5 mL, 51 mmol), and the reaction mixture was heated at reflux for 2 days. The resulting mixture was cooled to ambient temperature and filtered through a pad of silica gel using dichloromethane as eluent. The filtrate was then concentrated under reduced pressure to give an amber residue. The resulting residue was dissolved in diethyl ether. The ether solution was washed with water, dried (MgSO4), and concentrated under reduced pressure to give 8.71 g of the title compound. 1H NMR (CDCl3): delta 3.01 (s, 6H), 6.65 (s, 1H), 8.03 (s, 1H).<\/p>\n

The synthetic route of 20154-03-4 has been constantly updated, and we look forward to future research findings.<\/p>\n

Reference:
Patent; Gregory, Vann; Pasteris, Robert James; US2010\/240619; (2010); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 20154-03-4 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":[205,131],"tags":[126],"class_list":["post-4871","post","type-post","status-publish","format-standard","hentry","category-20154-03-4","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nSome tips on<\/title>\n<meta name=\"description\" content=\"20154-03-4, name is 3-(Trifluoromethyl)-1H-pyrazole, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. 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