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
CONDITIONS
反应条件
- 温度
- 0 °C
PROCEDURE
实验过程
A flask was charged with 60 mg of a 60% dispersion of NaH in oil. The dispersion was washed with three 2-mL portions of THF. The NaH was suspended in 5 mL of THF and cooled to 0° C. A solution Of cis-2-tridecen-1-ol (206 mg, 1.1 mmol, 1.1 equiv) in THF (1 mL) was slowly added to the mixture. After 25 minutes the cold bath was removed and stirring was continued for an additional 10 minutes. At this time a solution of (40) (361 mg, 1 mmol) in THF (1 mL) was added and stirring was continued for 12 hours. The mixture was poured into water (20 mL) and ether (25 mL). The organic layer was separated and washed with three 10-mL portions of water. The ether extract was dried (MgSO4) filtered and concentrated by rotary evaporation to yield a yellow oil. Purification by flash silica gel chromatography (95:05 petroleum ether/EtOAc) afforded 341 mg (85%) of the coupled produced (41) as a clear colorless oil: Rf 0.80 (9:1 petroleum ether/EtOAc); 1H NMR (CDCl3) δ 7.20 (s, 4 H), 5.61 (m, 2H), 4.76 (s, 2H), 4.52 (s, 2H), 4.08 (d, J=4.8 Hz, 2H), 2.05 (m, 2H), 1.29 (m, 16 H), 0.97 (s, 9 H), 0.91 (t, J=6.9 Hz, 3 H), 0.12 (s, 6 H); 13C NMR (CDCl3) δ 140.76, 137.04, 127.71, 126.04, 125.98, 71.86, 65.58, 64.80, 31.92, 29.62, 29.56, 29.52, 29.24, 29.36, 27.61, 25.94, 22.69, 18.57, 14.12, -5.25. ##STR8##
WORKUP
后处理
- washThe dispersion was washed with three 2-mL portions of THF
- customAfter 25 minutes the cold bath was removed
- stirringstirring
- waitwas continued for 12 hours
- customThe organic layer was separated
- washwashed with three 10-mL portions of water
- extractionThe ether extract
- dry with materialwas dried (MgSO4)
- filtrationfiltered
- concentrationconcentrated by rotary evaporation
- customto yield a yellow oil
- customPurification by flash silica gel chromatography (95:05 petroleum ether/EtOAc)
- customafforded 341 mg (85%) of the