反应详情

The 4-[(E)-2-(4-isopropyl-1,3-thiazol-2-yl)-1-ethenyl]-2-pyridinamine (2.65 g, 10.8 mmol) obtained in (D) was dissolved in toluene (100 ml), added with trichlorophenyl malonate (5.50 g, 11.9 mmol), and refluxed by heating for 1.5 hours. After the reaction mixture was concentrated, the deposited solid was collected by filtration and washed with n-hexane and ether to obtain the title compound (3.14 g, 93%) as yellow solid.

1. temperaturerefluxed
2. temperatureby heating for 1.5 hours
3. concentrationAfter the reaction mixture was concentrated
4. filtrationthe deposited solid was collected by filtration
5. washwashed with n-hexane and ether