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. 25392-41-0, name is 4-(Chloromethyl)-7-hydroxy-2H-chromen-2-one. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 25392-41-0
Sodium hydroxide (1.35 g, 34 mmol) was dissolved in water (8 mL), under ice bath was slowly added 4-(chloromethyl) -7-hydroxy-2H-benzopyran-2-one (2.5 g, 12 mmol) in water (6 mL). The mixture was stirred at room temperature for 1 hour and then reacted at 60 C for 4 hours. Concentrated hydrochloric acid (2.8 mL, 34 mmol) was added at 35 C, maintained at the temperature for 1 hour, then stirred at room temperature for 1 hour. The resulting solid was suction filtered and washed three times with water. The solid was dried to give the product as a white solid (1.2 g, 52% yield).
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Reference:
Patent; Shandong Xuanzhu Pharma Co., Ltd.; Wu, Yongqian; (37 pag.)CN104250239; (2016); B;,
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