反应详情

A solution of 8.1 g of 5-(3-chloropropyl)-1-(α-ethoxycarbonyl-p-cyanobenzyl)-1H-imidazole in 50 ml of tetrahydrofuran is cooled to 0° in an ice bath. To this is added 8.0 g of potassium-t-butoxide as a solid in portions. The mixture is stirred at room temperature for 2 h, neutralized with 10% acetic acid and partitioned between methylene chloride and water. The organic layer is washed with water, dried over magnesium sulfate and evaporated to yield an oil which is dissolved in a small volume of acetone and neutralized with ethereal hydrogen chloride. The solid is collected to yield 5-(p-cyanophenyl)-5-ethoxycarbonyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyridine.

1. custompartitioned between methylene chloride and water
2. washThe organic layer is washed with water
3. dry with materialdried over magnesium sulfate
4. customevaporated
5. customto yield an oil which
6. customThe solid is collected