Diisopropylamine → 2-(3-Hydroxy-1-azabicyclo[2.2.2]oct-3-yl)acetic acid t-butyl ester

関与物質

反応条件

反応手順

To a 0° C. solution of diisopropylamine (6.7 ml) in tetrahydrofuran (THF) (20 ml) was added 2.3M nBuLi (20 ml). The reaction mixture was stirred for 40 minutes and then cooled to -78° C. To this mixture was added dropwise a solution of t butylacetate (6.4 ml) in 10 ml of THF and stirring continued for an additional 15 minutes. Quinuclidin-3-one (free base) (5.0 g) in THF (15 ml) was added to the mixture dropwise and the mixture was allowed to warm to 0° C. over 1 hour. To this solution was added water (100 ml), the solution was extracted twice with chloroform and the combined extracts were washed once with brine. The resulting solution was dried over MgSO4, filtered and dried in vacuo to give 9.53 g of the subtitle compound as an off-white solid.

情報源と証拠