{"id":4092,"date":"2021-05-17T04:33:53","date_gmt":"2021-05-16T20:33:53","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=4092"},"modified":"2021-05-17T04:33:53","modified_gmt":"2021-05-16T20:33:53","slug":"continuously-updated-synthesis-method-about-c11h10n2o2","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=4092","title":{"rendered":"Continuously updated synthesis method about C11H10N2O2"},"content":{"rendered":"

Some common heterocyclic compound, 199678-06-3, name is 4-(1-Methyl-1H-pyrazol-4-yl)benzoic acid, molecular formula is C11H10N2O2, 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. Application In Synthesis of 4-(1-Methyl-1H-pyrazol-4-yl)benzoic acid<\/a><\/p>\n

EXAMPLE 55 [4-(1-Methyl-1H-pyrazol-4-yl)-phenyl]-(5H,11H-pyrrolo[2,1-c][1,4]-benzodiazepin-10-yl)-methanone Oxalyl chloride (0.30 g) was added to a suspension of 4-(1-methyl-1H-pyrazol-4-yl)-benzoic acid (0.46 g) in dichloromethane (25 ml). Two drops of dimethylformamide were added and the mixture was stirred for 18 hours at room temperature. The resultant solution was evaporated to dryness to yield the crude acid chloride (0.57 g), which was utilized without further purification. The acid chloride was added to a solution of 10,11-dihydro-5H-pyrrolo[2,1-c][1,4]-benzodiazepine (0.37 g) and diisopropylethylamine (0.58 g) in dichloromethane (50 ml). After 18 hours at room temperature, the reaction mixture was washed with water and saturated aqueous sodium bicarbonate. The dichloromethane solution was dried over anhydrous sodium sulfate and filtered through a short column of hydrous sodium magnesium silicate and further eluted with several volumes of dichloromethane. The combined organic phase was concentrated on a hot plate with the gradual addition of hexane until crystallization occurred. After cooling, the crystals were collected by filtration to yield the title compound (0.38 g), m.p. 200-201 C.; MS m\/z: 368 (M)+.<\/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 199678-06-3, its application will become more common.<\/p>\n

Reference:
Patent; Wyeth; US6511974; (2003); B1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/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 199678-06-3, 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":[657,131],"tags":[127],"class_list":["post-4092","post","type-post","status-publish","format-standard","hentry","category-199678-06-3","category-pyrazoles-derivatives","tag-m-w200-300"],"yoast_head":"\nContinuously updated synthesis method about<\/title>\n<meta name=\"description\" content=\"Some common heterocyclic compound, 199678-06-3, name is 4-(1-Methyl-1H-pyrazol-4-yl)benzoic acid, molecular formula is C11H10N2O2, 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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