{"id":4920,"date":"2021-06-24T04:24:34","date_gmt":"2021-06-23T20:24:34","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4920"},"modified":"2021-06-24T04:24:34","modified_gmt":"2021-06-23T20:24:34","slug":"simple-exploration-of-3-methyl-4-nitro-1h-pyrazole","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4920","title":{"rendered":"Simple exploration of 3-Methyl-4-nitro-1H-pyrazole"},"content":{"rendered":"<p>Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, This compound has unique chemical properties. The synthetic route is as follows., <a href=\"https:\/\/www.ambeed.com\/products\/5334-39-4.html\">Safety of 3-Methyl-4-nitro-1H-pyrazole<\/a><\/p>\n<p>To a solution of cw-3-benzyloxycyclobutanol (17 g, 95 ,4 mmol) and 3-methyl-4-nitro-lH-pyrazole (12.1 g, 95.4 mmol) in THF (350 mL) was added PPh3 (37.5 g, 143 mmol). Then, DIAD (28.9 g, 143 mmol) was added slowly at 0 C, and the mixture was stirred at 15 C for 20 h. The mixture was quenched with H2Q (100 mL), then filtered. The filtrate was then extracted with EtOAc (3 x 70 mL), The organic phase was washed with brine (30 mL), dried over anhydrous Na2S04, filtered and concentrated. The residue was purified by silica gel colum chromatography (PE:EtOAc = 10: 1 to 7: 1), to give trans- l-(3-benzyloxycyclobutyl)-5-methyl-4-nitro-pyrazole and trans-l-(3- benzyloxycyclobutyl)-3-methyl-4-nitro-pyrazoleTo a solution of \/ra>v-l-(3-benzyloxycyclobutyl)-5-methyl-4-nitro-pyrazole and rra?is-l-(3-benzyloxyxyck)butyl)-3-methyl-4-nitro-pyrazole (19.5 g, 67.9 mmol) in DCM (200 mL) was added BC1  (1 M, 26.5 mL) at 0 C, and the mixture was stirred at 0 C for 2 h. The mixture was poured into water (200 mL) slowly, then extracted with DCM (2 x 100 mL). The organic phase was washed with aqueous ai K ()\u00b7. (50 mL), brine (40 mL), dried over anhydrous Na2S04, filtered and concentrated. The residue was purified by silica gel column chromatography (PE\/EtOAc = 2 : 1 to 1 : 1), to give trans-3-[5- methyi-4-nitro-pyrazol- 1 -yl]cyclobutanol and rr s-3-[3-metiiyl-4-nitro-pyrazoi-l-yl]cyclobutanol as a mixture as a white soli d .<\/p>\n<p>According to the analysis of related databases, 5334-39-4, 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=WO2017087905&#038;F=0\">Patent; DENALI THERAPEUTICS INC.; ESTRADA, Anthony A.; FENG, Jianwen A.; LYSSIKATOS, Joseph P.; SWEENEY, Zachary K.; DE VICENTE FIDALGO, Javier; (271 pag.)WO2017\/87905; (2017); 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>According to the analysis of related databases, 5334-39-4, 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":[216,131],"tags":[126],"class_list":["post-4920","post","type-post","status-publish","format-standard","hentry","category-5334-39-4","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>Simple exploration of<\/title>\n<meta name=\"description\" content=\"Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, This compound has unique chemical properties. 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