{"id":5017,"date":"2021-06-29T03:13:51","date_gmt":"2021-06-28T19:13:51","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5017"},"modified":"2021-06-29T03:13:51","modified_gmt":"2021-06-28T19:13:51","slug":"application-of-c9h14n2o2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5017","title":{"rendered":"Application of C9H14N2O2"},"content":{"rendered":"

Adding a certain compound to certain chemical reactions, such as: 175277-11-9, name is 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 175277-11-9, name: 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid<\/a><\/p>\n

27) 3-(tert-butyl)-N-(3-methoxy-4-methylbenzyl)-1-methyl-1H-pyrazole-5-carboxamide To a solution of 3-Methoxy-3-methyl-benzaldehyde (250 mg, 1.66 mmol, 1.0 eq) in toluene (20 mL) was added 2,4-dimethoxybenzyl amine (306 mg, 1.83 mmol, 1.1 eq) and the reaction mixture was stirred at room temperature for 24 h. Toluene was removed to give a residue, which was taken in MeOH (20 mL) and then NaBH4 (129 mg, 3.32 mmol, 2.0 eq) was added slowly. The reaction mixture was stirred at room temperature for 6 h. Solvent was removed and the residue was extracted in Ethyl acetate and stirred with saturated aq NaHCO3 for 1 h. The organic layer was collected, dried and solvent was removed to give the crude amine, which was used in the next step without further purification. To a solution of the crude amine (1.66 mmol, 1.0 eq) in DMF (20 mL) were added the acid (333 mg, 1.83 mmol, 1.1 eq), DIEA (1.07 g, 8.32 mmol, 5 eq) and HBTU (757 g, 1.99 mmol, 1.2 eq) and the reaction mixture was stirred at rt for 12 h. The reaction mixture was then diluted with ethyl acetate (75 mL) and washed with 10% aqHCl (1*50 mL), sat NaHCO3 (1*50 mL) and water (4*50 mL). Organic layer was collected, dried (MgSO4) and evaporated to give a crude product, which was purified by column chromatography (EtOAc\/Hexane 25% to 75%)) to give the amide, which was directly used in the next step. The amide was treated with 95% TFA:H2O for 12 h. TFA was removed and azeotroped with toluene to give a residue, which was purified by column chromatography (EtOAc\/Hexane 10% to 50%) to give the desired product in (263 mg, >95% purity). Mass Spectrum (LCMS, ESI Pos.) Calcd. For C18H26N3O2: 316.0 (M+H), Found 316.0.<\/p>\n

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid, other downstream synthetic routes, hurry up and to see.<\/p>\n

Reference:
Patent; Prosetta Antiviral ,Inc.; Selvarajah, Suganya; Paulvannan, Kumar; (58 pag.)US2018\/118679; (2018); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid, other downstream synthetic routes, hurry up and to see.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[405,131],"tags":[126],"class_list":["post-5017","post","type-post","status-publish","format-standard","hentry","category-175277-11-9","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nApplication of<\/title>\n<meta name=\"description\" content=\"Adding a certain compound to certain chemical reactions, such as: 175277-11-9, name is 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. 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