{"id":4138,"date":"2021-05-18T03:49:32","date_gmt":"2021-05-17T19:49:32","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4138"},"modified":"2021-05-18T03:49:32","modified_gmt":"2021-05-17T19:49:32","slug":"introduction-of-a-new-synthetic-route-about-3273-44-7","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4138","title":{"rendered":"Introduction of a new synthetic route about 3273-44-7"},"content":{"rendered":"

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 3273-44-7, name is 5-Methyl-1H-pyrazole-3-carbaldehyde, This compound has unique chemical properties. The synthetic route is as follows., name: 5-Methyl-1H-pyrazole-3-carbaldehyde<\/a><\/p>\n

General procedure: To a suspension of 5-methyl-1H-pyrazole-3-carbaldehyde (18; 2-6 equiv) in anhydrous THF (10 mL) (in the case of the synthesis of 1) or MeOH (in the case of the synthesis of 2-5 and 11), the corresponding derivative bearing one to three amino groups (17,21 25-289d,11 or 36,4c see Scheme 1 and Scheme 2) (1 equiv), dissolved in anhydrous MeOH (5 mL), was added. The resulting mixture was heated at reflux until a clear solution resulted and then stirred at r.t. (up to 4 days, TLC analysis). The resulting imines were reduced without further purification by addition of NaBH4 (3-9 equiv) in portions. After complete addition of the reducing agent, the reaction mixture was stirred for 24 h at r.t. and then the solvent was removed under reduced pressure. The residue was suspended in CHCl3-H2O (1:1, 10 mL) and stirred for 12 h at r.t. The resulting suspension was extracted with CHCl3 (3 \u00d7 20 mL), dried over MgSO4, and the solvent was removed. The crude product was purified by column chromatography.<\/p>\n

According to the analysis of related databases, 3273-44-7, the application of this compound in the production field has become more and more popular.<\/p>\n

Reference:
Article; Koch, Niklas; Seichter, Wilhelm; Mazik, Monika; Synthesis; vol. 48; 17; (2016); p. 2757 – 2767;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

According to the analysis of related databases, 3273-44-7, the application of this compound in the production field has become more and more popular.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[640,131],"tags":[126],"class_list":["post-4138","post","type-post","status-publish","format-standard","hentry","category-3273-44-7","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nIntroduction of a new synthetic route about<\/title>\n<meta name=\"description\" content=\"Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 3273-44-7, name is 5-Methyl-1H-pyrazole-3-carbaldehyde, This compound has unique chemical properties. The synthetic route is as follows., name: 5-Methyl-1H-pyrazole-3-carbaldehyde\" \/>\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=4138\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction of a new synthetic route about\" \/>\n<meta property=\"og:description\" content=\"Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 3273-44-7, name is 5-Methyl-1H-pyrazole-3-carbaldehyde, This compound has unique chemical properties. 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