反应详情

A solution of 6.1 g of 2-(5-bromo-2-methyl-3-thienyl)furo[3,2-c]imidazo[1,2-a]pyridine, which was prepared by the reaction of 4-aminofuro[3,2-c]pyridine and 5-bromo-3-bromoacetyl-2-methylthiophene in a similar manner to that of aforementioned Preparation 7, in 50 ml of tetrahydrofuran was added dropwise to a solution of 3.5 g of lithium aluminum hydride in 50 ml of tetrahydrofuran. When addition was complete, the mixture was refluxed for 2 hours. After being cooled, excessive lithium aluminum hydride was decomposed by the addition of hydrous ether, and the mixture was dried over anhydrous magnesium sulfate. The drying agent was removed by filtration, and the solvent was removed under reduced pressure to give 4.5 g of the title compound as a white powder.

1. customof aforementioned Preparation 7
2. additionWhen addition
3. temperaturethe mixture was refluxed for 2 hours
4. temperatureAfter being cooled
5. dry with materialthe mixture was dried over anhydrous magnesium sulfate
6. customThe drying agent was removed by filtration
7. customthe solvent was removed under reduced pressure