{"id":4728,"date":"2021-06-16T04:23:46","date_gmt":"2021-06-15T20:23:46","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4728"},"modified":"2021-06-16T04:23:46","modified_gmt":"2021-06-15T20:23:46","slug":"some-tips-on-c5h6n2o2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4728","title":{"rendered":"Some tips on C5H6N2O2"},"content":{"rendered":"

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 16034-46-1, name is 1-Methyl-1H-pyrazole-5-carboxylic acid, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C5H6N2O2<\/a><\/p>\n

To a solution of 4-bromoaniline (200 mg, 1.16 mmol, 1 eq) in EtOAc (5 mL) was added 2-methylpyrazole-3-carboxylic acid (175.95 mg, 1.40 mmol, 1.2 eq), DIEA (450.78 mg, 3.49 mmol, 607.52 muL, 3 eq) and T3P (2.22 g, 3.49 mmol, 2.07 mL, 3 eq). The mixture was stirred at 60 C. for 12 h. Sat. NaHCO3 solution (10 mL) was added and the mixture was extracted with ethyl acetate (10 mL*3). The combined organic layers were washed with brine (10 mL), dried over anhydrous Na2SO4, filtered and concentrated to afford the crude product which was purified on silica gel column chromatography (from PE\/EtOAc=1\/0 to 3\/1, TLC: PE\/EtOAc=2\/1, Rf=0.47) to give N-(4-bromophenyl)-2-methyl-pyrazole-3-carboxamide (198 mg, 699.77 mumol, 60.2% yield, 99.0% purity) as a white solid. 1H NMR (400 MHz, CDCl3) delta ppm 7.61 (s, 1H), 7.49 (d, J=2.0 Hz, 1H), 7.47 (s, 4H), 6.63 (d, J=2.0 Hz, 1H), 4.20 (s, 3H); ES-LCMS m\/z 279.6 [M+H]+.<\/p>\n

According to the analysis of related databases, 16034-46-1, the application of this compound in the production field has become more and more popular.<\/p>\n

Reference:
Patent; Kyn Therapeutics; Castro, Alfredo C.; Evans, Catherine Anne; (108 pag.)US2019\/55218; (2019); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

According to the analysis of related databases, 16034-46-1, the application of this compound in the production field has become more and more popular.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[169,131],"tags":[126],"class_list":["post-4728","post","type-post","status-publish","format-standard","hentry","category-16034-46-1","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nSome tips on<\/title>\n<meta name=\"description\" content=\"Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 16034-46-1, name is 1-Methyl-1H-pyrazole-5-carboxylic acid, This compound has unique chemical properties. 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