反应详情

温度

80 °C

To a solution of 8-(4-benzyl-piperazin-1-yl)-6-bromo-quinoline (1.6 g, 4.2 mmol) in dichloroethane (50 mL) under a N2 atmosphere was added chloroethylchloroformate (1.26 mL, 12.6 mmol) and the reaction mixture was heated at 80° C. for 4 hours, and at ambient temperaure overnight. No reaction was observed by TLC, therefore vinyl chloroformate (0.35 mL, 6.3 mmol) was added and the reaction was heated at 80° C. for another 4 hours. The cooled reaction was poured into H2O and extracted into CH2Cl2 (2×100 mL) and EtOAc (100 mL). The organic fractions were combined, dried over Na2SO4, and left in EtOAc overnight. The organic layer was concentrated and purified by column chromatography 10%MeOH/CH2C2+NH4OH) affording 1.03 g (84%) of a brown foam. MS(+)APCI m/z 292 [M+H]+.

1. temperaturethe reaction was heated at 80° C. for another 4 hours
2. customThe cooled reaction
3. extractionextracted into CH2Cl2 (2×100 mL) and EtOAc (100 mL)
4. dry with materialdried over Na2SO4
5. waitleft in EtOAc overnight
6. concentrationThe organic layer was concentrated
7. custompurified by column chromatography 10%MeOH/CH2C2+NH4OH)