反应详情

150 mg of 6-[2-(2,5-dimethoxyphenyl)ethynyl]-4-ethyl-quinazoline are dissolved in 10 ml of ethyl acetate. After addition of 20 mg of palladium (10% on charcoal) the mixture is stirred overnight under an atmosphere of hydrogen and subsequently filtered over celite. The filtrate is evaporated in vacuo and the residue crystallised from cylohexane to obtain the title compound as colourless crystals. mp: 74°.

1. filtrationsubsequently filtered over celite
2. customThe filtrate is evaporated in vacuo
3. customthe residue crystallised from cylohexane