{"id":5413,"date":"2021-07-19T03:52:02","date_gmt":"2021-07-18T19:52:02","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5413"},"modified":"2021-07-19T03:52:02","modified_gmt":"2021-07-18T19:52:02","slug":"a-new-synthetic-route-of-c3h3n3o2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5413","title":{"rendered":"A new synthetic route of C3H3N3O2"},"content":{"rendered":"<p>26621-44-3, name is 3-Nitro-1H-pyrazole, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. <a href=\"https:\/\/www.ambeed.com\/products\/26621-44-3.html\">name: 3-Nitro-1H-pyrazole<\/a><\/p>\n<p>To a stirred mixture of 3-nitro-lH-pyrazole (3.16 g, 27.9 mmol) in glacial acetic acid (20 mL) at 0 C was added fuming nitric acid (2.6 mL, 58.69 mmol) dropwise, followed by acetic anhydride (6.6 niL, 69.87 mmol). The mixture was stirred and allowed to warm to rt over 3 h, then poured into ice water (50 mL) and stirred for 20 h. The mixture was extracted with EtOAc combined organic layers were dried over MgS04, filtered and concentrated to dryness to afford 1,3-dinitro-lH- pyrazole (4.3 g, 97%). H NMR (300 MHz, DMSO- 6) delta 8.00 (br s, 1H), 6.44 (br s, 1H).<\/p>\n<p>The synthetic route of 26621-44-3 has been constantly updated, and we look forward to future research findings.<\/p>\n<p>Reference:<br \/><a href=\"http:\/\/v3.espacenet.com\/textdoc?DB=EPODOC&#038;IDX=WO2012030944&#038;F=0\">Patent; AMBIT BIOSCIENCES CORPORATION; CHAO, Qi; HADD, Michael, J.; HOLLADAY, Mark, W.; ROWBOTTOM, Martin; WO2012\/30924; (2012); A1;<\/a>,<br \/><a href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrazole\">Pyrazole &#8211; Wikipedia<\/a>,<br \/><a href=\"https:\/\/www.sciencedirect.com\/topics\/chemistry\/pyrazoles\">Pyrazoles &#8211; an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The synthetic route of 26621-44-3 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":[163,131],"tags":[126],"class_list":["post-5413","post","type-post","status-publish","format-standard","hentry","category-26621-44-3","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A new synthetic route of<\/title>\n<meta name=\"description\" content=\"26621-44-3, name is 3-Nitro-1H-pyrazole, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. 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