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ChemicalBook CAS DataBase List 1-(2-FLUORO-6-(TRIFLOROMETHYL)BENZYL)UREA
830346-46-8

1-(2-FLUORO-6-(TRIFLOROMETHYL)BENZYL)UREA synthesis

3synthesis methods

In a 250 ml three-necked flask, 3.4 g of E6, 20 ml of water, 4.23 g of urea, and hydrochloric acid (12 mol / L, 2 ml) were added. After refluxing for 3 hours, the reaction solution was cooled to 4 ° C with an ice water bath, and filtered to obtain 3.78 g of a white solid ( Yield: 91%).
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Yield:830346-46-8 91%

Reaction Conditions:

with hydrogenchloride in water; for 3 h;Reflux;

Steps:

13 Example 13Preparation of 1- [2-fluoro-6- (trifluoromethyl) benzyl] urea E7

In a 100ml reaction bottle, add 3.4g of E6, 20ml of water, 4.23g of urea,And hydrochloric acid (12mol / L, 2ml), and reacted under reflux for 3h, the reaction solution was cooled to 4 ° C with an ice water bath, and filtered with suctionThere was obtained 3.78 g of a white solid (yield 91%).

References:

CN110498771,2019,A Location in patent:Paragraph 0137-0139

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