{"id":6559,"date":"2021-09-29T03:39:24","date_gmt":"2021-09-28T19:39:24","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=6559"},"modified":"2021-09-29T03:39:24","modified_gmt":"2021-09-28T19:39:24","slug":"9-29-2021-news-new-downstream-synthetic-route-of-5334-40-7","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=6559","title":{"rendered":"9\/29\/2021 News New downstream synthetic route of 5334-40-7"},"content":{"rendered":"

Adding a certain compound to certain chemical reactions, such as: 5334-40-7, name is 4-Nitro-1H-pyrazole-3-carboxylic acid, belongs to pyrazoles-derivatives compound, 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 5334-40-7, HPLC of Formula: C4H3N3O4<\/a><\/p>\n

A mixture of 4-nitro-3-pyrazolecarboxylic acid (4.98 g, 31.7 mmol), trans 4-aminocyclohexanol (3.65 g, 31.7 mmol), EDAC (6.68 g, 34.8 mmol) and HOBt (4.7 g, 34.8 mmol) in DMF (120 ml) was stirred at ambient temperature for 16 hours. The mixture was reduced in vacuo, the residue taken up in CH2CI2 and washed successively with 5percent citric acid, saturated aqueous sodium bicarbonate, water and brine. The product was found to be mainly in the citric acid wash, which was basified and extracted with EtOAc. The organic layer was dried over MgSO4, filtered and evaporated to give a white solid, which was triturated with CHCI3 to give 1.95 g of 4-nitro-1H-pyrazole-3-carboxylic acid 4-hydroxy-cyclohexylamide. (LC\/MS: Rt 1.62, [M+H]+255).<\/p>\n

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Nitro-1H-pyrazole-3-carboxylic acid, and friends who are interested can also refer to it.<\/p>\n

Reference:
Patent; ASTEX THERAPEUTICS LIMITED; WO2006\/77428; (2006); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Nitro-1H-pyrazole-3-carboxylic acid, and friends who are interested can also refer to it.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[153,131],"tags":[126],"class_list":["post-6559","post","type-post","status-publish","format-standard","hentry","category-5334-40-7","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nNew downstream synthetic route of<\/title>\n<meta name=\"description\" content=\"Adding a certain compound to certain chemical reactions, such as: 5334-40-7, name is 4-Nitro-1H-pyrazole-3-carboxylic acid, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. 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