反应详情

To 9.3 g (0.053 Mol) 4(1-dimethylaminomethyl-ethenyl)-aniline in 220 ml absolute diethylether are added 5 ml (0.085 Mol) methylisocyanate and the reaction solution, after addition of 0.3 ml dibutyl tin diacetate, stirred over night, at room temperature. The crystals that precipitated after 18 hours are filtered off and washed with petrol ether to give the analytically pure title compound, m.p. 123°-124°.

1. customThe crystals that precipitated after 18 hours
2. filtrationare filtered off
3. washwashed with petrol ether