{"id":3210,"date":"2021-04-08T00:00:00","date_gmt":"2021-04-07T16:00:00","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=3210"},"modified":"2021-04-08T00:00:00","modified_gmt":"2021-04-07T16:00:00","slug":"simple-exploration-of-3-methylpyrazole-2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=3210","title":{"rendered":"Simple exploration of 3-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. 1453-58-3, name is 3-Methylpyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Formula: C4H6N2<\/a><\/p>\n

Potassium \/-butoxide (3.9 g, 0.33 mmol) was dissolved in DMSO (25 mL). To this solution was added 3 -methyl pyrazole (2.7 g, 0.33 mmol) and the reaction was heated at 50 C for 30 min. l-Bromo-4-chloro-2-fluorobenzene (4.6 g, 0.22 mmol) was then added and the reaction was stirred at 50 C for 16 h. The reaction was cooled to RT and extracted with water and EtOAc, washed with brine, and dried over Na2S04) filtered and concentrated in vacuo. Purification by normal phase silica gel column chromatography (EtO Ac\/heptane) provided l-(2- bromo-5-chlorophenyl)-3-methyl-lH-pyrazole and l-(2-bromo-5-chloroplienyl)-5-methyl-lH- pyrazole as a 4: 1 mixture that was used in the next step directly,The mixture from Step 1 (8 g, 0.39 mmol) was dissolved in 160 mL of THF and cooled to 0 C. \/-Propyl magnesium chloride (2.0 M in THF, 23 mL) was added dropwise and the reaction stirred for 45 min, then ethyl trifluoroacetate (6 mL) was added. The reaction was stirred for 30 min at 0 C, then 10% HC1 was added dropwise (40 mL). The reaction was extracted with water and EtOAc, washed with brine, and dried over Na2S04, filtered, and concentrated in vacuo. Purification by normal phase silica gel column chromatography (EtOAc\/heptane) provided l -(4- chloiO-2-(3-methyi-lH-pyrazol-l-yl)phenyl)-2,2,2-trifluoroethanone as a white solid.<\/p>\n

The synthetic route of 1453-58-3 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 1453-58-3 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":[175,131],"tags":[145],"class_list":["post-3210","post","type-post","status-publish","format-standard","hentry","category-1453-58-3","category-pyrazoles-derivatives","tag-m-w0-100"],"yoast_head":"\nSimple exploration of 3-Methylpyrazole<\/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. 1453-58-3, name is 3-Methylpyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Formula: C4H6N2\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.pyrazoles-derivatives.com\/?p=3210\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Simple exploration of 3-Methylpyrazole\" \/>\n<meta property=\"og: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. 1453-58-3, name is 3-Methylpyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. 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