{"id":4570,"date":"2021-06-08T04:12:41","date_gmt":"2021-06-07T20:12:41","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4570"},"modified":"2021-06-08T04:12:41","modified_gmt":"2021-06-07T20:12:41","slug":"continuously-updated-synthesis-method-about-3-iodo-1-methyl-1h-pyrazole-2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4570","title":{"rendered":"Continuously updated synthesis method about 3-Iodo-1-methyl-1H-pyrazole"},"content":{"rendered":"

Adding a certain compound to certain chemical reactions, such as: 92525-10-5, name is 3-Iodo-1-methyl-1H-pyrazole, 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 92525-10-5, Quality Control of 3-Iodo-1-methyl-1H-pyrazole<\/a><\/p>\n

H) 3-amino-5-(2-methylcyclohexyl)-7-(1-methyl-1H-pyrazol-3-yl)-1,5-dihydro-4H-pyrazolo[4,3-c]pyridin-4-one A mixture of 3-amino-7-bromo-5-(2-methylcyclohexyl)-1,5-dihydro-4H-pyrazolo[4,3-c]pyridin-4-one obtained in Step G (200 mg), 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi-1,3,2-dioxaborolane (861 mg), (1,1′-bis(diphenylphosphino)ferrocene)dichloropalladium(II) (22.0 mg), potassium acetate (121 mg) and N,N-dimethylformamide (3.0 mL) was heated with microwave irradiation at 110C for 5 hr. The reaction mixture was cooled to room temperature, and 3-iodo-1-methyl-1H-pyrazole (384 mg), aqueous sodium carbonate solution (2 M, 0.610 mL) and tetrakis(triphenylphosphine)palladium(0) (71.0 mg) were added thereto at room temperature. The reaction mixture was heated with microwave irradiation at 140C for 1 hr. The reaction mixture was cooled to room temperature, and poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (methanol\/dichloromethane) to give the title compound (51.0 mg). 1H NMR (400 MHz, CDCl3) delta 0.78-0.88 (3H, m), 1.24-2.04 (9H, m), 3.96 (3H, brs), 4.74-4.77 (2H, m), 6.40-6.45 (1H, m), 7.33-7.37 (1H, m), 7.39-7.40 (1H, m), 10.45 (1H, brs). MS (ESI+): [M+H]+327.3.<\/p>\n

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Iodo-1-methyl-1H-pyrazole, and friends who are interested can also refer to it.<\/p>\n

Reference:
Patent; Takeda Pharmaceutical Company Limited; NAGAMIYA, Hiroyuki; YOSHIDA, Masato; SETO, Masaki; MARUI, Shogo; ODA, Tsuneo; ISHICHI, Yuji; SUZUKI, Hideo; KUSUMOTO, Tomokazu; YOGO, Takatoshi; RHIM, Chul Yun; YOON, Cheolhwan; LEE, Gil Nam; KANG, Hyun Bin; KIM, Kwang Ok; JEON, Hye Sun; EP2818473; (2014); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Iodo-1-methyl-1H-pyrazole, and friends who are interested can also refer to it.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[172,131],"tags":[127],"class_list":["post-4570","post","type-post","status-publish","format-standard","hentry","category-92525-10-5","category-pyrazoles-derivatives","tag-m-w200-300"],"yoast_head":"\nContinuously updated synthesis method about<\/title>\n<meta name=\"description\" content=\"Adding a certain compound to certain chemical reactions, such as: 92525-10-5, name is 3-Iodo-1-methyl-1H-pyrazole, 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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