{"id":3516,"date":"2021-04-20T08:50:40","date_gmt":"2021-04-20T00:50:40","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=3516"},"modified":"2021-04-20T08:50:40","modified_gmt":"2021-04-20T00:50:40","slug":"the-important-role-of-1-2-tetrahydropyranyl-1h-pyrazole","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=3516","title":{"rendered":"The important role of 1-(2-Tetrahydropyranyl)-1H-pyrazole"},"content":{"rendered":"

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 449758-17-2 as follows. name: 1-(2-Tetrahydropyranyl)-1H-pyrazole<\/a><\/p>\n

Preparation 2 6-[1-Hydroxy-1-(1-tetrahydropyran-2-yl-1H-pyrazol-5-yl)ethyl]-3-(methoxymethyl)-3H-1,3-benzothiazol-2-one (Racemic mixture of diasteromers) Add 1-tetrahydropyran-2-yl-pyrazole (1.5 Eq, 202 mmoles, 30.8 g)(Aldrich) and THF (900 mL) to a flame dried 2 L 3 neck round bottom flask and cool to -78 C. (dry ice\/acetone bath). Add t-butyl lithium (2.5 M in THF)(1.5 Eq, 202 mmoles; 81.0 mL) dropwise, maintaining at least -68 C., and stir for 60 min at -78 C. Add a solution of 6-acetyl-3-(methoxymethyl)-3H-1,3-benzothiazol-2-one (32.0 g, 134 mmoles) in THF (450 mL) dropwise over 45 min, and stir at -78 for 30 min. Remove the dry ice bath and allow to warm to -50 C. and stir for 1 hr. (do not let temp. rise above -45 C.). Quench the reaction with MeOH (80 mL). Transfer to a separatory funnel, add EtOAc (2000 mL), and wash with water (500 mL) and then brine (500 mL). The organic layer is dried over Na2SO4, filter and concentrate to give a crude yellow oil. Purify the material by HPLC, eluting with hexanes\/EtOAc (6:4) to yield 6-[1-hydroxy-1-(1-tetrahydropyran-2-yl-1H-pyrazol-5-yl)ethyl]-3-(methoxymethyl)-3H-1,3-benzothiazol-2-one as a white foam (44 g, 113 mmoles, 84% yield) (Racemic mixture of diasteromers). LCMS (Low) rt=1.76 min., M+1=288, and rt=1.86 min., M+1=288<\/p>\n

According to the analysis of related databases, 449758-17-2, the application of this compound in the production field has become more and more popular.<\/p>\n","protected":false},"excerpt":{"rendered":"

According to the analysis of related databases, 449758-17-2, 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":[544,131],"tags":[126],"class_list":["post-3516","post","type-post","status-publish","format-standard","hentry","category-449758-17-2","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nThe important role of 1-(2-Tetrahydropyranyl)-1H-pyrazole<\/title>\n<meta name=\"description\" content=\"In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 449758-17-2 as follows. name: 1-(2-Tetrahydropyranyl)-1H-pyrazole\" \/>\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=3516\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The important role of 1-(2-Tetrahydropyranyl)-1H-pyrazole\" \/>\n<meta property=\"og:description\" content=\"In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. 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Pyrazole derivatives play an important role in antitumor agents.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.pyrazoles-derivatives.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\",\"name\":\"Jessica.F\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/en.cravatar.com\/avatar\/2d1cec2a99eeaad5a5b217c9cdbfb610?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/en.cravatar.com\/avatar\/2d1cec2a99eeaad5a5b217c9cdbfb610?s=96&d=mm&r=g\",\"caption\":\"Jessica.F\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The important role of 1-(2-Tetrahydropyranyl)-1H-pyrazole","description":"In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. 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