{"id":5653,"date":"2021-08-02T03:24:45","date_gmt":"2021-08-01T19:24:45","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5653"},"modified":"2021-08-02T03:24:45","modified_gmt":"2021-08-01T19:24:45","slug":"extracurricular-laboratory-synthetic-route-of-1-methylpyrazole","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5653","title":{"rendered":"Extracurricular laboratory: Synthetic route of 1-Methylpyrazole"},"content":{"rendered":"

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 930-36-9, name is 1-Methylpyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 1-Methylpyrazole<\/a><\/p>\n

To a solution of 1 -methyl pyrazole (4.1 g, 50 mmole) in THF (100 mL) at 00C was added n-BuLi (2.2M in THF, 55 mmole). The reaction solution was stirred for 1 hour at RT and then cooled to -78C [J. Heterocyclic Chem. 41 , 931 (2004)]. To the reaction solution was added 2-isopropoxy-4,4,5,5-tetramethyl-1 ,3,2-dioxaborolane (12.3 mL, 60 mmole). After 15 min at -78C, the reaction was allowed to warm to 00C over 1 hour. The reaction was diluted with saturated NH4CI solution and extracted with DCM. The organics were dried over Na2SO4 and concentrated under vacuum to afford a tan solid (8.0 g, 76%) which was used without further purification. LCMS (ES) m\/z 127 (M+H)+ for [RB(OH)2]; 1H NMR (CDCI3, 400 MHz) delta 7.57 (s, 1 H), 6.75 (s, 1 H), 4.16 (s, 3H), and 1.41 (s, 12H).<\/p>\n

The synthetic route of 930-36-9 has been constantly updated, and we look forward to future research findings.<\/p>\n

Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2008\/98105; (2008); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 930-36-9 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":[245,131],"tags":[145],"class_list":["post-5653","post","type-post","status-publish","format-standard","hentry","category-930-36-9","category-pyrazoles-derivatives","tag-m-w0-100"],"yoast_head":"\nExtracurricular laboratory: Synthetic route of<\/title>\n<meta name=\"description\" content=\"In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 930-36-9, name is 1-Methylpyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. 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