反应详情

5,5-Dimethyl-3-(4-trifluoromethylsulfanylphenyl)imidazolidine-2,4-dione 3 (1 g, 3.29 mmol) is dissolved in 10 ml of DMF, 1.36 g of K2CO3 (3 eq, 9.87 mmol) and 909 mg of 2-chloro-4-chloromethylpyridine (3.95 mmol, 1.2 eq) are added, and the mixture is refluxed for 20 hours. The solvent is removed under vacuum and the residue is dissolved in CH2Cl2 and treated three times with active charcoal. After removing the solvent, the product 1-(2-chloropyrid-4-ylmethyl)-5,5-dimethyl-3-(4-trifluoromethylsulfanylphenyl)imidazolidine-2,4-dione is obtained (3.2 g; 56%).

1. temperaturethe mixture is refluxed for 20 hours
2. customThe solvent is removed under vacuum
3. dissolutionthe residue is dissolved in CH2Cl2
4. additiontreated three times with active charcoal
5. customAfter removing the solvent