Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 7252-83-7, name is 2-Bromo-1,1-dimethoxyethane, A new synthetic method of this compound is introduced below., COA of Formula: C4H9BrO2
1-(2-Amino-3-chloro-4-hydroxy-phenyl)-ethanone (15.5 g, 83.8 mmol), Cs2CO3 (54.6 g, 167 mmol) and 2-bromo-1,1-dimethoxy-ethane (14.78 mL, 126 mmol) was dissolved in DMF (125 mL) under an atmosphere of nitrogen. The reaction was heated to 65 C. for 6 hours. The reaction was determined to be complete by LC/MS. The reaction was taken up in EtOAc (500 mL) and washed with 5% LiCl(aq) (3*250 mL). Organics were dried over Na2SO4, filtered and solvent removed under reduced pressure. 1-[2-Amino-3-chloro-4-(2,2-dimethoxy-ethoxy)-phenyl]-ethanone (12.99 g, 57%) was isolated by silica gel chromatography as a white solid. LC/MS=274 (M++1)
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Gilead Sciences, Inc.; US2011/135599; (2011); A1;,
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