{"id":4310,"date":"2021-05-27T03:56:11","date_gmt":"2021-05-26T19:56:11","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4310"},"modified":"2021-05-27T03:56:11","modified_gmt":"2021-05-26T19:56:11","slug":"extracurricular-laboratory-synthetic-route-of-13-dimethyl-1h-pyrazole-4-carboxylic-acid","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4310","title":{"rendered":"Extracurricular laboratory: Synthetic route of 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid"},"content":{"rendered":"<p>Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 78703-53-4, name is 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid, A new synthetic method of this compound is introduced below., <a href=\"https:\/\/www.ambeed.com\/products\/78703-53-4.html\">Safety of 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid<\/a><\/p>\n<p>General procedure: Pyrazole acid chlorides 6a-b were prepared by refluxing 4a-b in thionyl chloride for 8 h. Pyrazole acid chlorides 6a-b (12 mmol) in anhydrous tetrahydrofuran (THF; 30 mL) were slowly added to a solution of amine derivatives or 5-methylisoxazol-3-ol (10 mmol) and K2CO3  (1.38 g, 10 mmol) in anhydrous THF (30 mL) at a controlled temperature of 5 C. The reaction proceeded at room temperature until 6a-b was no longer tested by TLC. The reaction solution was then filtered and the solvent distilled. The residue was dissolved in ethyl acetate, washed with water and brine, dried over anhydrous sodium sulfate and recrystallized to generate the target pyrazole carboxamides and isoxazolol pyrazole carboxylates (7aa-bk). The product yields ranged from 40% to 80%. All 20 compounds were novel, and the physical and spectral data for these compounds are listed below.<\/p>\n<p>The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.<\/p>\n<p>Reference:<br \/><a href=\"https:\/\/doi.org\/10.1071\/CH9830135\">Article; Sun, Jialong; Zhou, Yuanming; Molecules; vol. 20; 3; (2015); p. 4383 &#8211; 4394;<\/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 basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[255,131],"tags":[126],"class_list":["post-4310","post","type-post","status-publish","format-standard","hentry","category-78703-53-4","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>Extracurricular laboratory: Synthetic route of<\/title>\n<meta name=\"description\" content=\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 78703-53-4, name is 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid, A new synthetic method of this compound is introduced below., Safety of 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid\" \/>\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=4310\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Extracurricular laboratory: Synthetic route of\" \/>\n<meta property=\"og:description\" content=\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 78703-53-4, name is 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid, A new synthetic method of this compound is introduced below., Safety of 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=4310\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-26T19:56:11+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=4310\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=4310\",\"name\":\"Extracurricular laboratory: Synthetic route of\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-05-26T19:56:11+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. 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