{"id":5801,"date":"2021-08-11T05:23:12","date_gmt":"2021-08-10T21:23:12","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5801"},"modified":"2021-08-11T05:23:12","modified_gmt":"2021-08-10T21:23:12","slug":"new-learning-discoveries-about-c4h5n3o2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5801","title":{"rendered":"New learning discoveries about C4H5N3O2"},"content":{"rendered":"

Related Products of 5334-39-4<\/a>, The chemical industry reduces the impact on the environment during synthesis 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, I believe this compound will play a more active role in future production and life.<\/p>\n

To a solution of 3-methyi-4- mtro-lH-pyrazole (40 g, 314.71 mmol) in DMF (700 mL) was added NaH (18.88 g, 472.06 mmol, 60% purity) at 0 C over a period of 30 min under N2. The reaction was then stirred at 25 C for 2 h followed by the addition of methyl 2-bromo-2-methylpropanoate (85.46 g, 472.06 mmol, 61.04 mL) dropwise at 0C. The reaction mixture was warmed to 25 C and stirred at 25 C for another 16 h. TLC (petroleum ether\/ethyl acetate = 5: 1) showed the starting material was consumed completely. The reaction was quenched by ice water slowly and then extracted with EtOAc (3 chi 700 mL). The combined organic phase was washed with brine (3 chi 200 mL), dried over anhydrous Na2S(, filtered and concentrated in vacuo. The residue was purified by column chromatography on silica gel (petroleum ether\/ethyl acetate = 30: 1- 15: 1), to yield the desired product as a light yellow solid. H NMR (400 MHz, C DC M: 5 8.29 (s, 1 H), 3.72 is. 1 1 1). 2.51 (s, I H), 1 .84 (s, 6 H).<\/p>\n

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-Methyl-4-nitro-1H-pyrazole, other downstream synthetic routes, hurry up and to see.<\/p>\n

Reference:
Patent; DENALI THERAPEUTICS INC.; ESTRADA, Anthony A.; FENG, Jianwen A.; LYSSIKATOS, Joseph P.; SWEENEY, Zachary K.; DE VICENTE FIDALGO, Javier; (271 pag.)WO2017\/87905; (2017); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-Methyl-4-nitro-1H-pyrazole, other downstream synthetic routes, hurry up and to see.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[216,131],"tags":[126],"class_list":["post-5801","post","type-post","status-publish","format-standard","hentry","category-5334-39-4","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nNew learning discoveries about<\/title>\n<meta name=\"description\" content=\"Related Products of 5334-39-4, The chemical industry reduces the impact on the environment during synthesis 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, I believe this compound will play a more active role in future production and life.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New learning discoveries about\" \/>\n<meta property=\"og:description\" content=\"Related Products of 5334-39-4, The chemical industry reduces the impact on the environment during synthesis 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, I believe this compound will play a more active role in future production and life.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-10T21:23:12+00:00\" \/>\n<meta name=\"author\" content=\"Jessica.F\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jessica.F\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801\",\"name\":\"New learning discoveries about\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-08-10T21:23:12+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Related Products of 5334-39-4, The chemical industry reduces the impact on the environment during synthesis 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, I believe this compound will play a more active role in future production and life.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=5801#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"New learning discoveries about C4H5N3O2\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/\",\"name\":\"pyrazoles-derivatives\",\"description\":\"Several pyrazole derivatives possess important pharmacological activities and they have been proved useful materials in drug research. 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