{"id":6460,"date":"2021-09-24T03:23:06","date_gmt":"2021-09-23T19:23:06","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=6460"},"modified":"2021-09-24T03:23:06","modified_gmt":"2021-09-23T19:23:06","slug":"24-sep-news-new-learning-discoveries-about-55864-87-4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=6460","title":{"rendered":"24-Sep News New learning discoveries about 55864-87-4"},"content":{"rendered":"

Related Products of 55864-87-4<\/a>, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 55864-87-4 name is Ethyl 4-nitro-1H-pyrazole-3-carboxylate, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.<\/p>\n

A mixture of 4-nitro-lH-pyrazole-3-carboxylic acid ethyl ester (6.40 g, 34.6 mmol) and 10% Pd\/C (650 mg) in EtOH (150ml) was stirred under an atmosphere of hydrogen for 20 h. The mixture was filtered through a plug of Celite, reduced in vacuo and dried through azeotrope with toluene to afford 4-amino-lH-pyrazole-3- carboxylic acid ethyl ester as a pink solid (5.28 g, 98%). (1H NMR (400 MHz, DMSOd6) delta 12.7 (s, IH)5 7.1 (s, IH), 4.8 (s, 2H)5 4.3 (q, 2H), 1.3 (t, 3H)).<\/p>\n

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

Reference:
Patent; ASTEX THERAPEUTICS LIMITED; WO2006\/70198; (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, Ethyl 4-nitro-1H-pyrazole-3-carboxylate, 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":[258,131],"tags":[126],"class_list":["post-6460","post","type-post","status-publish","format-standard","hentry","category-55864-87-4","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nNew learning discoveries about<\/title>\n<meta name=\"description\" content=\"Related Products of 55864-87-4, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 55864-87-4 name is Ethyl 4-nitro-1H-pyrazole-3-carboxylate, This compound is widely used in many fields, so it is necessary to find a new synthetic route. 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