{"id":6472,"date":"2021-09-24T03:23:06","date_gmt":"2021-09-23T19:23:06","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=6472"},"modified":"2021-09-24T03:23:06","modified_gmt":"2021-09-23T19:23:06","slug":"s-21-news-the-origin-of-a-common-compound-about-139756-02-8","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=6472","title":{"rendered":"S-21 News The origin of a common compound about 139756-02-8"},"content":{"rendered":"<p><a href=\"https:\/\/www.ambeed.com\/products\/139756-02-8.html\">Related Products of 139756-02-8<\/a>, 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 139756-02-8 as follows.<\/p>\n<p>To a 250 ml three-mouth bottle by adding 2 &#8211; ethoxy -3 &#8211; pyridine formaldehyde 8.20 g, 1 &#8211; methyl -3 &#8211; propyl -4 &#8211; amino pyrazole -5 &#8211; carboxamide 9.6 g and isopropyl alcohol 150 ml, stir at room temperature 3 hours; adding 8.56 g anhydrous ferric trichloride, stirring which separate the reaction system access oxygen, 60 C reaction 3 hours; boil off isopropanol about 100 ml, adding 180 ml purified water, filtered, drying to obtain the solid 15.7 g. Yield: 95.1%.<\/p>\n<p>According to the analysis of related databases, 139756-02-8, the application of this compound in the production field has become more and more popular.<\/p>\n<p>Reference:<br \/><a href=\"http:\/\/v3.espacenet.com\/textdoc?DB=EPODOC&#038;IDX=CN104804003B&#038;F=0\">Patent; Guangzhou Tongjuan Pharmaceutical Technology Co., Ltd.; Zheng Qingquan; Huang Shifu; Cao Xutao; Li Yongjian; (10 pag.)CN104804003; (2017); B;<\/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>According to the analysis of related databases, 139756-02-8, 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":[157,131],"tags":[126],"class_list":["post-6472","post","type-post","status-publish","format-standard","hentry","category-139756-02-8","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>The origin of a common compound about<\/title>\n<meta name=\"description\" content=\"Related Products of 139756-02-8, 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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