{"id":3393,"date":"2021-04-14T06:45:37","date_gmt":"2021-04-13T22:45:37","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=3393"},"modified":"2021-04-14T06:45:37","modified_gmt":"2021-04-13T22:45:37","slug":"some-scientific-research-about-5-chloro-1-methyl-4-nitro-1h-pyrazole","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=3393","title":{"rendered":"Some scientific research about 5-Chloro-1-methyl-4-nitro-1H-pyrazole"},"content":{"rendered":"

Some common heterocyclic compound, 42098-25-9, name is 5-Chloro-1-methyl-4-nitro-1H-pyrazole, molecular formula is C4H4ClN3O2, 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. Computed Properties of C4H4ClN3O2<\/a><\/p>\n

Example 56 3,3-Difluoro-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)piperidine A mixture of 5-chloro-1-methyl-4-nitro-1H-pyrazole (0.1 g, 4.5 mmol), 3,3-difluoropiperidine hydrochloride (0.14 g, 0.93 mmol) and DIPEA (0.5 mL, 2.8 mmol) in EtOH (3 mL) was heated at 130 C. in a microwave for 1 hr. Additional DIPEA (0.5 mL, 2.8 mmol) and 3,3-difluoropiperidine hydrochloride (0.29 g, 1.8 mmol) were added and the mixture was heated at 130 C. in a microwave for 2 hr. The solvent was removed under reduced pressure and the crude product was purified via silica gel column chromatography (0-60% EtOAc\/isohexane) to yield 3,3-difluoro-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)piperidine as a yellow oil (127 mg, 83%). 1H NMR (400 MHz, CDCl3) delta 8.04 (s, 1H), 3.80 (s, 3H), 3.41-3.29 (m, 2H), 3.26-3.04 (m, 2H), 2.17-2.03 (m, 2H), 1.97-1.88 (m, 2H).<\/p>\n

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 42098-25-9, its application will become more common.<\/p>\n","protected":false},"excerpt":{"rendered":"

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 42098-25-9, its application will become more common.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[256,131],"tags":[126],"class_list":["post-3393","post","type-post","status-publish","format-standard","hentry","category-42098-25-9","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nSome scientific research about 5-Chloro-1-methyl-4-nitro-1H-pyrazole<\/title>\n<meta name=\"description\" content=\"Some common heterocyclic compound, 42098-25-9, name is 5-Chloro-1-methyl-4-nitro-1H-pyrazole, molecular formula is C4H4ClN3O2, 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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