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. 2972-52-3, name is 2,4-Dichloro-5-pyrimidinecarbonyl chloride. This compound has unique chemical properties. The synthetic route is as follows. Application In Synthesis of 2,4-Dichloro-5-pyrimidinecarbonyl chloride
A solution of 2,4-dichloropyrimidine-5-carbonyl chloride (1.00 g, 4.76 mmol) in ethanol (6.0 mL) was added DIPEA (2.5 raL, 14,4 mmol) slowly at 0 C under nitrogen. After 30 mm, hex-5-yn-1-amine (0.476 g, 4.91 mmol) was added in one portion. The reaction mixture was stirred at room temperature for 3.5 h, then was added dropwise to a solution of 6-azidohexan-1-amine (0.801 g, 5.64 mmol) in ethanol (4.0 mL) at 50 C After the reaction was complete (monitored by LCMS), the mixture was diluted with water (10 mL) and concentrated under a reduced pressure and filtered. The yellow solid was washed with water and dried under vacuum to be used in the next step without further purification (0.723 g, 39% over 3 steps).
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Reference:
Patent; THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL; WANG, Xiaodong; ZHANG, Weihe; KIREEV, Dmitri; LIU, Jing; MCIVER, Andrew Louis; WO2014/85225; (2014); A1;,
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