Some common heterocyclic compound, 75175-77-8, name is 3-(4-Fluorophenyl)-N,N-dimethylacrylamide, molecular formula is C11H12FNO, 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. Quality Control of 3-(4-Fluorophenyl)-N,N-dimethylacrylamide
General procedure: Cyanothioacetamide (for X=S) (1.5 equiv) or cyanoacetamide (for X=O) (1.5 equiv) was added to a solution of the 1, 3-diones (for R4= -CF3 and -CH3) (1.0 equiv) or enaminones (for R4=H) (1.0 equiv) in ethanol in the presence of DABCO (1.0 equiv) at room temperature. The reaction mixture was stirred under reux for 3-6 h until complete conversion of the starting materials, as monitored by TLC. After cooled to room temperature, the solvent was evaporated under reduced pressure and the residue was neutralized with diluted hydrochloric acid (1 N) to precipitate the crude products. After filtrated and dried in vacuo, the product can be straight used for step d. Yield: 70-90%.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 75175-77-8, its application will become more common.
Reference:
Article; Wang, Ning-Yu; Zuo, Wei-Qiong; Xu, Ying; Gao, Chao; Zeng, Xiu-Xiu; Zhang, Li-Dan; You, Xin-Yu; Peng, Cui-Ting; Shen, Yang; Yang, Sheng-Yong; Wei, Yu-Quan; Yu, Luo-Ting; Bioorganic and Medicinal Chemistry Letters; vol. 24; 6; (2014); p. 1581 – 1588;,
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