{"id":1966,"date":"2021-03-03T05:06:35","date_gmt":"2021-03-02T21:06:35","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=1966"},"modified":"2021-03-03T05:06:35","modified_gmt":"2021-03-02T21:06:35","slug":"new-learning-discoveries-about-4522-35-4","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=1966","title":{"rendered":"New learning discoveries about 4522-35-4"},"content":{"rendered":"

These common heterocyclic compound, 4522-35-4, name is 3-Iodo-1H-pyrazole, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Quality Control of 3-Iodo-1H-pyrazole<\/a><\/p>\n

INTERMEDIATE 29 5-Chloro-4-(3-iodo-lH-pyrazol-l-yl)-2-methoxypyridine A solution of 3-iodo-lH-pyrazole (0.3 g, 1.547 mmol), 5-chloro-2-methoxypyridine- 4-boronic acid (0.377 g, 2.011 mmol), DMAP (0.756 g, 6.19 mmol), copper(II)acetate (0.281 g, 1.547 mmol), and cesium carbonate (1.26 g, 3.87 mmol) in 1,4-dioxane (7.73 mL) was heated at 80 C overnight. The reaction was allowed to warm to room temperature and filtered. The filtrate was diluted with EtOAc and water, and the seperated aq. layer was extracted with EtOAc. The combined organics were dried over MgS04, filtered and concentrated. The residue was purified with flash chromatography (ISCO Combiflash, 24 g, 0-10 % EtOAc in hexanes) to give 5- chloro-4-(3-iodo-lH-pyrazol-l-yl)-2-methoxypyridine, as a white solid. LCMS calc. = 335.93; found = 335.82 (M+H)+. 1H NMR (500 MHz, CDC13): delta 8.25 (s, 1 H); 8.01 (d, J= 2.6 Hz, 1 H); 7.14 (s, 1 H); 6.66 (d, J= 2.5 Hz, 1 H); 3.96 (s, 3 H).<\/p>\n

The synthetic route of 3-Iodo-1H-pyrazole has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 3-Iodo-1H-pyrazole has been constantly updated, and we look forward to future research findings.<\/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-1966","post","type-post","status-publish","format-standard","hentry","category-4522-35-4","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nNew learning discoveries about 4522-35-4<\/title>\n<meta name=\"description\" content=\"These common heterocyclic compound, 4522-35-4, name is 3-Iodo-1H-pyrazole, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. 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