{"id":3568,"date":"2021-04-23T06:34:19","date_gmt":"2021-04-22T22:34:19","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=3568"},"modified":"2021-04-23T06:34:19","modified_gmt":"2021-04-22T22:34:19","slug":"a-new-synthetic-route-of-5-isopropyl-1h-pyrazole-3-carboxylic-acid","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=3568","title":{"rendered":"A new synthetic route of 5-Isopropyl-1H-pyrazole-3-carboxylic acid"},"content":{"rendered":"

Related Products of 92933-47-6<\/a>, A common heterocyclic compound, 92933-47-6, name is 5-Isopropyl-1H-pyrazole-3-carboxylic acid, molecular formula is C7H10N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.<\/p>\n

Step A Ethyl 3-isopropyl-1H-pyrazole-5-carboxylate (7a)To a solution of 3-isopropyl-1H-pyrazole-5-carboxylic acid (2.5 g, 16.2 mmol) [commercially available from Alfa Aesar, Ward Hill, MA, USA] in MeOH (25 mL) was added cone, sulfuric acid (1 mL) and refluxed for 12h. The reaction mixture was cooled and the solvent was removed under reduced pressure. The crude mass was purified by flash column chromatography using 1:9 MeOH in CHCl3 to yield compound 7a (2.6 g). 1H NMR (400 MHz, CDCl3): delta 6.64 (s, 1H), 4.39 (q, J=8.00 Hz, 2H), 3.06-3.01 (m, 1H), 1.39 (t, J=8.00 Hz, 3H), 1.31 (d, J=8.00 Hz, 6H). Molecular Formula: C9H14N2O2, LCMS purity: 96%; Expected: 182.1 ; Observed: 183 (M+1).<\/p>\n

The synthetic route of 92933-47-6 has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 92933-47-6 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":[352,131],"tags":[126],"class_list":["post-3568","post","type-post","status-publish","format-standard","hentry","category-92933-47-6","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nA new synthetic route of 5-Isopropyl-1H-pyrazole-3-carboxylic acid<\/title>\n<meta name=\"description\" content=\"Related Products of 92933-47-6, A common heterocyclic compound, 92933-47-6, name is 5-Isopropyl-1H-pyrazole-3-carboxylic acid, molecular formula is C7H10N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.\" \/>\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=3568\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A new synthetic route of 5-Isopropyl-1H-pyrazole-3-carboxylic acid\" \/>\n<meta property=\"og:description\" content=\"Related Products of 92933-47-6, A common heterocyclic compound, 92933-47-6, name is 5-Isopropyl-1H-pyrazole-3-carboxylic acid, molecular formula is C7H10N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=3568\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-04-22T22:34:19+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=3568\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=3568\",\"name\":\"A new synthetic route of 5-Isopropyl-1H-pyrazole-3-carboxylic acid\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-04-22T22:34:19+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Related Products of 92933-47-6, A common heterocyclic compound, 92933-47-6, name is 5-Isopropyl-1H-pyrazole-3-carboxylic acid, molecular formula is C7H10N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=3568#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pyrazoles-derivatives.com\/?p=3568\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=3568#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.pyrazoles-derivatives.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A new synthetic route of 5-Isopropyl-1H-pyrazole-3-carboxylic acid\"}]},{\"@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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