{"id":1967,"date":"2021-03-03T05:06:35","date_gmt":"2021-03-02T21:06:35","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=1967"},"modified":"2021-03-03T05:06:35","modified_gmt":"2021-03-02T21:06:35","slug":"extended-knowledge-of-2075-45-8","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=1967","title":{"rendered":"Extended knowledge of 2075-45-8"},"content":{"rendered":"

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. 2075-45-8, name is 4-Bromo-1H-pyrazole, A new synthetic method of this compound is introduced below., Application In Synthesis of 4-Bromo-1H-pyrazole<\/a><\/p>\n

a) 4-Bromo- 1 -ethyl- 1 H-pyrazoleTo a solution of 4-bromo-l H-pyrazole (5 g, 34 mmol) in DMF were added K2C03 (11.75 g, 85.03 mmol, 2.5 eq.) and iodoethane (8 g, 51 mmol, 1.5 eq.) and the mixture was stirred at RT for 12 h. The mixture was quenched and extracted as in Intermediate Example 5(c). The solvent was distilled off and the crude residue was purified by column chromatography (60-120 silica gel, 40 % ethyl acetate in hexane) to yield the product in 84 % yield (5 g). ? NMR (300 MHz, DMSO-i?): delta 8.02 (s, 1H), 7.55 (s, 1H), 4.15 (q, 2H), 1.37 (t, 3H); LC-MS (ESI): Calculated mass: 175.03;Observed mass: 177.0 [M+H]+ (rt: 0.56 min).<\/p>\n

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},"excerpt":{"rendered":"

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":[248,131],"tags":[126],"class_list":["post-1967","post","type-post","status-publish","format-standard","hentry","category-2075-45-8","category-pyrazoles-derivatives","tag-m-w100-200"],"yoast_head":"\nExtended knowledge of 2075-45-8<\/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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Generally, it requires fewer steps, and cheap raw materials. 2075-45-8, name is 4-Bromo-1H-pyrazole, A new synthetic method of this compound is introduced below., Application In Synthesis of 4-Bromo-1H-pyrazole\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=1967\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-03-02T21:06:35+00:00\" \/>\n<meta name=\"author\" content=\"Jessica.F\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jessica.F\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=1967\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=1967\",\"name\":\"Extended knowledge of 2075-45-8\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-03-02T21:06:35+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"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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