反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
A mixture of 2-chloroethanal O-[2-(morpholin-4-yl)ethyl]oxime (0.13 g), (2R)-1-[3,5-bis(trifluoromethyl)-benzoyl]-2-(1H-indol-3-ylmethyl)piperazine (0.29 g), diisopropylethylamine (0.11 mL), and acetonitrile (10 mL) was heated under reflux overnight. After cooling to room temperature the solvent was removed in vacuo, and the residue treated with dichloromethane and K2CO3 (aq). The layers were separated, the organic layer was dried (Na2SO4), and concentrated in vacuo. The residue was purified by flash chromatography (SiO2, CH2Cl2/MeOH/NH4OH 92/7.5/0.5) to afford 2-{(2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-(1H-indol-3-ylmethyl)-piperazin-4-yl}-ethanal O-[2-(morpholin-4-yl)ethyl]oxime 0.38 g (95%) as an E/Z mixture. MH+ 626, Rf 0.53+0.66 (E+Z isomer) (CH2Cl2/MeOH/NH4OH 92/7.5/0.5).
WORKUP
后处理
- temperaturewas heated
- temperatureunder reflux overnight
- customwas removed in vacuo
- additionthe residue treated with dichloromethane and K2CO3 (aq)
- customThe layers were separated
- dry with materialthe organic layer was dried (Na2SO4)
- concentrationconcentrated in vacuo
- customThe residue was purified by flash chromatography (SiO2, CH2Cl2/MeOH/NH4OH 92/7.5/0.5)