反应详情

2,4-Bis{2-hydroxy-N-(2,2,6,6-tetramethyl-4-piperidyl)ethylamino}-6-chloro-1,3,5-triazine (20.5 g) and hexamethylenediamine (2.0 g) were dissolved in xylene (700 ml), and the mixture was refluxed for 12 hours. The xylene was distilled off from the reaction mixture, and the residue was put into aqueous ammonia, extracted with chloroform and dried over anhydrous magnesium sulfate. The residue obtained by removing the chloroform was chromatographed through silica gel (eluent=ethyl acetate:triethylamine:ethanol=5:1:5), giving the desired product as white crystals with a melting point of 165°-168° C.

1. temperaturethe mixture was refluxed for 12 hours
2. distillationThe xylene was distilled off from the reaction mixture
3. extractionextracted with chloroform
4. dry with materialdried over anhydrous magnesium sulfate
5. customThe residue obtained
6. customby removing the chloroform
7. customwas chromatographed through silica gel (eluent=ethyl acetate:triethylamine:ethanol=5:1:5)