反応 #76387

反応方程式

6-benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic acid

6-Benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic Acid

(R)-1-methylheptyl-1

(R)-2-octanol

DMAP

→

6-benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic acid (1S)-1-methylheptyl ester

収率 53.0%

6-Benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic Acid (1S)-1-Methylheptyl Ester

収率 53.0%

溶媒

THF

DIC

反応条件

後処理

1. 1
   その他quenched with water
2. 2
   抽出extracted with ethyl acetate:hexane(1:1)
3. 3
   洗浄washed with brine
4. 4
   乾燥dried over MgSO4
5. 5
   濃縮concentrated in vacuo
6. 6
   その他Purification by chromatography on silica gel (3% EtOAc/hexanes)

実験手順

To a solution of 6-benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic acid (31) (1 equi.), (R)-1-methylheptyl-1-ol (13) (1 equi.), and DMAP (dimethylaminopyridine) (0.1 equi.) in THF (25 mL/mmole), DIC (diisopropyl carbodiimide) (1.2 equi.) was added at room temperature. The reaction mixture was stirred at that temperature for 24 h, quenched with water, extracted with ethyl acetate:hexane(1:1), washed with brine, dried over MgSO4, and concentrated in vacuo. Purification by chromatography on silica gel (3% EtOAc/hexanes) gave 6-benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic acid (1S)-1-methylheptyl ester (36) as a colorless oil (53%).

出典