{"id":986,"date":"2020-11-10T10:54:45","date_gmt":"2020-11-10T02:54:45","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=986"},"modified":"2020-11-10T10:54:45","modified_gmt":"2020-11-10T02:54:45","slug":"new-learning-discoveries-about-5932-27-4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=986","title":{"rendered":"New learning discoveries about 5932-27-4"},"content":{"rendered":"

Adding some certain compound to certain chemical reactions, such as: 5932-27-4, name is Ethyl 1H-pyrazole-3-carboxylate, 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 5932-27-4. 5932-27-4<\/a><\/p>\n

A mixture of 3-[4-(bromomethyl)phenyl]-5-[4-phenyl-5-(trifluoromethyl)-2-thienyl]- 1 ,2,4-oxadiazole (338mg, crude), ethyl 1 \/-\/-pyrazole-3-carboxylate (47mg, 0.333mmol) and potassium te\/f-butoxide (41 mg, 0.366mmol) was stirred in ethanol (3.3ml) at 6O0C. The reaction was monitored by LCMS. After 5 hours the reaction mixture was evaporated to dryness, the residues were partitioned between ethyl acetate (45ml) and water (20ml). The organic phase was separated, washed with brine (20ml), dried with magnesium sulphate, filtered and evaporated to dryness. This produced 300mg of orange oil, which was purified on silica, eluting with pentane and ethyl acetate (0 to 90percent gradient). The appropriate fractions were combined and evaporated to dryness. Two isomers were isolated. D3a was obtained as a white solid (30mg, 17percent over 2 steps).1H-NMR (CDCI3): delta 1.34 (3H, t), 4.31 (2H, q), 5.85 (2H, s), 6.91 (1 H, s), 7.36 (2H, d), 7.46 (5H, m), 7.58 (1 H, s), 7.89 (1 H, s), 8.08 (2H, d). MS: m\/z (M+H)+ 525, C26H19F3N4O3S requires 524.63mg of yellow oil was also obtained, which was purified on a MDAP. The appropriate fractions were combined and evaporated to dryness, producing D3b as a white solid (48mg, 27percent over 2 steps).1H-NMR (CDCI3, 400MHz): delta 1.41 (3H, t), 4.43 (2H, q), 5.49 (2H, s), 6.87 (1 H, s), 7.36 (2H, d), 7.41 (1 H, s), 7.46 (5H, m), 7.90 (1 H, s), 8.13 (2H, d). MS: m\/z (M+H)+ 525, C26H19F3N4O3S requires 524.<\/p>\n

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Ethyl 1H-pyrazole-3-carboxylate.<\/p>\n","protected":false},"excerpt":{"rendered":"

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Ethyl 1H-pyrazole-3-carboxylate.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[170,131],"tags":[126],"class_list":["post-986","post","type-post","status-publish","format-standard","hentry","category-5932-27-4","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nNew learning discoveries about 5932-27-4<\/title>\n<meta name=\"description\" content=\"Adding some certain compound to certain chemical reactions, such as: 5932-27-4, name is Ethyl 1H-pyrazole-3-carboxylate, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. 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