Adding a certain compound to certain chemical reactions, such as: 26021-57-8, 3,4-Dihydro-2H-benzo[b][1,4]oxazin-6-ol, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, 26021-57-8, blongs to alcohols-buliding-blocks compound. COA of Formula: C8H9NO2
General procedure: To a mixture of 9 (100mg, 0.74mmol) (the general procedure for the synthesis of intermediate 9 was presented in supporting information), 3-chlorobenzaldehyde (104mg, 0.74mmol) and ethyl 2-cyanoacetate (83muL, 0.78mmol) in anhydrous EtOH (5mL) was added piperdine (136muL, 1.48mmol). The reaction mixture was stirred for 16hat 80C under N2 atmosphere. The resulting reaction mixture was evaporated to dryness under reduced pressure. The residue was purified by flash column chromatography eluting with CH2Cl2/MeOH (200:1-100:1, v/v) to afford the title compound (9a) as a slight yellow solid (210mg, 77% yield).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,26021-57-8, its application will become more common.
Reference:
Article; Zhang, Huijun; Fang, Xiong; Meng, Qian; Mao, Yujia; Xu, Yan; Fan, Tingting; An, Jing; Huang, Ziwei; European Journal of Medicinal Chemistry; vol. 157; (2018); p. 380 – 396;,
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