{"id":5273,"date":"2021-07-12T03:17:38","date_gmt":"2021-07-11T19:17:38","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=5273"},"modified":"2021-07-12T03:17:38","modified_gmt":"2021-07-11T19:17:38","slug":"research-on-new-synthetic-routes-about-3-iodo-1h-pyrazole-3","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=5273","title":{"rendered":"Research on new synthetic routes about  3-Iodo-1H-pyrazole"},"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. 4522-35-4, name is 3-Iodo-1H-pyrazole, A new synthetic method of this compound is introduced below., <a href=\"https:\/\/www.ambeed.com\/products\/4522-35-4.html\">COA of Formula: C3H3IN2<\/a><\/p>\n<p>1-(chloromethyl)-4-methoxy-benzene (2.10 mL, 15.5 mmol) was added to a stirred mixture of 3-iodo-1H-pyrazole (2.01 g, 10.4 mmol) and Cs2CO3 (6.70 g, 20.6 mmol) in DMF (30.0 mL). The reaction mixture was stirred at 60 C for 2 hours and then, cooled to room temperature. Water (100mL) was added and aqueous was extracted with EtOAc (3 x 50 mL). Combined organic extracts were washed with aqueous saturated NH4Cl (25 mL) solution, brine (25 mL) and dried over MgSO4. The mixture was filtered and concentrated to afford 4.06 g of crude material. The residue was adsorbed on silica using DCM and purified by silica gel chromatography to afford 3-iodo-1-[(4- methoxyphenyl)methyl]pyrazole and 5-iodo-1-[(4-methoxyphenyl)methyl]pyrazole (3.18 g, 98%) as a white solid as a ca.5:1 mixture of regioisomers. Major Regioisomer: 1H NMR (400 MHz, CDCl3) 7.23 &#8211; 7.15 (m, 3H), 7.12 (d, J = 2.3 Hz, 1H), 6.92 &#8211; 6.85 (m, 2H), 6.40 (d, J = 2.3 Hz, 1H), 5.24 (s, 2H). : ESI-MS m\/z calc.313.9916, found 314.98 (M+1)+; Retention time: 0.93 minutes Using Method J<\/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=\"http:\/\/v3.espacenet.com\/textdoc?DB=EPODOC&#038;IDX=WO2016154075&#038;F=0\">Patent; VERTEX PHARMACEUTICALS INCORPORATED; SAYEGH, Camil Elie; STURINO, Claudio; FOURNIER, Pierre-Andre; LACOSTE, Jean-Eric; DIETRICH, Evelyne; MARTEL, Julien; VALLEE, Frederic; (494 pag.)WO2016\/154075; (2016); A1;<\/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":[147,131],"tags":[126],"class_list":["post-5273","post","type-post","status-publish","format-standard","hentry","category-4522-35-4","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>Research on new synthetic routes about<\/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. 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