{"id":4409,"date":"2021-06-01T03:59:39","date_gmt":"2021-05-31T19:59:39","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4409"},"modified":"2021-06-01T03:59:39","modified_gmt":"2021-05-31T19:59:39","slug":"application-of-31037-02-2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4409","title":{"rendered":"Application of 31037-02-2"},"content":{"rendered":"

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 31037-02-2 as follows. Recommanded Product: Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate<\/a><\/p>\n

Intermediate 32: Ethyl 5-(benzylsulfanyl)-l-methyl-lH-pyrazole-4-carboxylate Dibenzyl disulfide (101.9 g, 413.57 mmol) was added in portions to a solution of ethyl 5- amino-1 -methyl- lH-pyrazole-4-carboxylate (10 g, 59.11 mmol) in MeCN (400 mL) in an atmosphere of nitrogen and at rt. CuCl (293 mg, 7.14 mmol) was added in portions at rt to the reaction mixture and it was stirred at rt for 30 min. 3 -Methyl- 1-nitrobutane (41.5 g, 354.26 mmol) was added to the reaction mixture and the resulting solution was stirred at rt for 30 min and then at 60C for 1 h. The reaction mixture was allowed to reach rt and the solids were filtered off. The filtrate was concentrated under vacuum and the residue was purified by silica gel column chromatography (EtO Ac\/petroleum ether, 1 :8) to give the title compound (11.6 g, 71%) as yellow oil. MS m\/z 111 [M+H]+<\/p>\n

According to the analysis of related databases, 31037-02-2, the application of this compound in the production field has become more and more popular.<\/p>\n

Reference:
Patent; ASTRAZENECA AB; BRODDEFALK, Johan, Olof; EMTENAeS, Hans, Fredrik; GRANBERG, Kenneth, Lars; LEMURELL, Malin, Anita; PETTERSEN, Daniel, Tor; PLOWRIGHT, Alleyn, Thomas; ULANDER, Lars, Johan, Andreas; (161 pag.)WO2016\/177703; (2016); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

According to the analysis of related databases, 31037-02-2, the application of this compound in the production field has become more and more popular.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[183,131],"tags":[126],"class_list":["post-4409","post","type-post","status-publish","format-standard","hentry","category-31037-02-2","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nApplication of<\/title>\n<meta name=\"description\" content=\"In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 31037-02-2 as follows. 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