Adding a certain compound to certain chemical reactions, such as: 25597-16-4, name is Ethyl 4,4,4-trifluorocrotonate, belongs to esters-buliding-blocks compound, 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 25597-16-4, SDS of cas: 25597-16-4
[0319] A mixture of 4-benzyl-2-hydroxy-3-methylbenzaldehyde prepared as in Step 4 (1.07 g, 4.73 mmole), K2C03 (0.654 g, 4.73 mmole) and ethyl 444-trifluocrotonate (484 uL, 5.67 mmole) in anhydrous DMF (5.0 mL) was heated to 85 C under a dry N2 atmosphere for 2.75 h. The mixture was then cooled, poured into IN HC1 (100 ml) and extracted with EtOAc (2 X 100 mL). The combined extracts were washed with brine (100 mL), dried over MGS04, filtered and concentrated in vacuo to give 1.86 g of a yellow oil. The crude product was purified by silica chromatography (95: 5 hexanes: EtOAc) to give 1.04 g (59% yield) of the product as a light yellow oil: EIHRMS NILZ 376. 1310 (M+, C21H19F3O3, Calc’d 376.1286).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, Ethyl 4,4,4-trifluorocrotonate, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; PHARMACIA CORPORATION; WO2004/87686; (2004); A2;; ; Patent; PHARMACIA CORPORATION; WO2004/87687; (2004); A1;,
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