Potassium Hydroxide → Benzoic acid, 4-(2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)ethenyl)-, (E)-
反応式
[CH3:1][C:2]1([CH3:26])[C:11]2[C:6](=[CH:7][C:8](/[CH:12]=[CH:13]/[C:14]3[CH:23]=[CH:22][C:17]([C:18]([O:20]C)=[O:19])=[CH:16][CH:15]=3)=[CH:9][CH:10]=2)[C:5]([CH3:25])([CH3:24])[CH2:4][CH2:3]1.[OH-].[K+]>O>[CH3:1][C:2]1([CH3:26])[C:11]2[C:6](=[CH:7][C:8](/[CH:12]=[CH:13]/[C:14]3[CH:15]=[CH:16][C:17]([C:18]([OH:20])=[O:19])=[CH:22][CH:23]=3)=[CH:9][CH:10]=2)[C:5]([CH3:25])([CH3:24])[CH2:4][CH2:3]1参加物
4
反応条件
- 温度
- 70 °C
実験手順
In a 50 mL round bottom flask was charged methyl 4-((E)-2-(1,2,3,4-tetrahydro-1,1,4,4-tetramethylnaphthalen-6-yl)vinyl)benzoate 10 (0.30 g, 0.86 mmol) in 20 mL and water (2 mL) and KOH was added (193 mg, 3.44 mmol). The suspension was heated for 6 h at 70° C. Methanol was removed in vacuo, water (20 mL) was added and the solution washed with diethyl ether (2×30 mL). The aqueous solution was carefully acidified to pH=1 using a solution of HCl 1N and extracted with diethyl ether (3×100 ml). The organic layer was dried over MgSO4, filtered and evaporated to yield to 4-((E)-2-(1,2,3,4-tetrahydro-1,1,4,4-tetramethylnaphthalen-6-yl)vinyl)benzoic acid 12 (0.26 g, 90% yield) as a white solid.