{"id":2153,"date":"2021-03-11T02:17:40","date_gmt":"2021-03-10T18:17:40","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=2153"},"modified":"2021-03-11T02:17:40","modified_gmt":"2021-03-10T18:17:40","slug":"some-scientific-research-about-55864-87-4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=2153","title":{"rendered":"Some scientific research about 55864-87-4"},"content":{"rendered":"

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 55864-87-4, name is Ethyl 4-nitro-1H-pyrazole-3-carboxylate, A new synthetic method of this compound is introduced below., Quality Control of Ethyl 4-nitro-1H-pyrazole-3-carboxylate<\/a><\/p>\n

To a mixture of A32 (5.45 g, 29.4 mmol, 1 eq) and 3,4-dihydro-2H-pyran (7.43 g, 88.3 mmol, 8.07 mL, 3 eq) in THE (40 mL) was added TsOH (507 mg, 2.94 mmol, 0.1 eq). The resulting mixture was stirred at 80 C for 16 hours to give a yellow solution. TLC (PE\/EtOAc = 3\/1) showed the reaction was completed. The reaction mixture was quenched with H20 (100 mL) and extracted with EtOAc (50 mL x 2). The organic layer were washed with brine (20 mL x 3), dried over anhydrous Na2S04, filtered and concentrated under reduced pressure to give a residue. The residue was purified by silica gel column chromatography (Si02, PE\/EtOAc = 3:1) to give 7.01 g (yield: 88.4%) of A37 as a yellow oil.<\/p>\n

The synthetic route of 55864-87-4 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 55864-87-4 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":[258,131],"tags":[126],"class_list":["post-2153","post","type-post","status-publish","format-standard","hentry","category-55864-87-4","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nSome scientific research about 55864-87-4<\/title>\n<meta name=\"description\" content=\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 55864-87-4, name is Ethyl 4-nitro-1H-pyrazole-3-carboxylate, A new synthetic method of this compound is introduced below., Quality Control of Ethyl 4-nitro-1H-pyrazole-3-carboxylate\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pyrazoles-derivatives.com\/?p=2153\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Some scientific research about 55864-87-4\" \/>\n<meta property=\"og:description\" content=\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. 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