{"id":5731,"date":"2021-08-05T03:16:12","date_gmt":"2021-08-04T19:16:12","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5731"},"modified":"2021-08-05T03:16:12","modified_gmt":"2021-08-04T19:16:12","slug":"continuously-updated-synthesis-method-about-5203-77-0-2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5731","title":{"rendered":"Continuously updated synthesis method about 5203-77-0"},"content":{"rendered":"<p>Adding a certain compound to certain chemical reactions, such as: 5203-77-0, name is 1,3-Dimethyl-1H-pyrazol-5-ol, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound  5203-77-0, <a href=\"https:\/\/www.ambeed.com\/products\/5203-77-0.html\">SDS of cas: 5203-77-0<\/a><\/p>\n<p>Intermediate 9 (4 mmol), dissolved in dry dichloromethane( 60 mL), and DCC (4.8 mmol) were mixed together and stirred at room temperature for 1 h. Then 1,3-dimethyl-1H-pyrazol-5-ol (4 mmol) and DMAP (0.4 mmol) were added to the above solution,and stirred for a further 24-36 h at room temperature. After adding dichloromethane (30 mL), the resultant mixture was washed sequentially with 2 N hydrochloric acid (100 mL), saturated NaHCO3 and saturated brine and dried over anhydrous sodium sulfate.The residue solution was evaporated in vacuum and purified by silica gel column chromatography using gradient elution of ethyl acetate\/hexane (V\/V = 1\/2) to obtain the desired intermediate 10.<\/p>\n<p>At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1,3-Dimethyl-1H-pyrazol-5-ol, and friends who are interested can also refer to it.<\/p>\n<p>Reference:<br \/><a href=\"\">Article; Xu, Yu-Ling; Lin, Hong-Yan; Cao, Run-Jie; Ming, Ze-Zhong; Yang, Wen-Chao; Yang, Guang-Fu; Bioorganic and Medicinal Chemistry; vol. 22; 19; (2014); p. 5194 &#8211; 5211;<\/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>At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1,3-Dimethyl-1H-pyrazol-5-ol, and friends who are interested can also refer to it.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[253,131],"tags":[126],"class_list":["post-5731","post","type-post","status-publish","format-standard","hentry","category-5203-77-0","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>Continuously updated synthesis method about<\/title>\n<meta name=\"description\" content=\"Adding a certain compound to certain chemical reactions, such as: 5203-77-0, name is 1,3-Dimethyl-1H-pyrazol-5-ol, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. 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