t-Butyl 6-hydroxy-6-(4,4-dimethyl-2,6-dioxocyclohexylidene)-hexanoate → 6-Hydroxy-6-(4,4-dimethyl-2,6-dioxocyclohexylidene)-hexanoic acid
Reaction equation
[OH:1][C:2](=[C:14]1[C:19](=[O:20])[CH2:18][C:17]([CH3:22])([CH3:21])[CH2:16][C:15]1=[O:23])[CH2:3][CH2:4][CH2:5][CH2:6][C:7]([O:9]C(C)(C)C)=[O:8]>C(Cl)Cl.C(O)(C(F)(F)F)=O>[OH:1][C:2](=[C:14]1[C:15](=[O:23])[CH2:16][C:17]([CH3:21])([CH3:22])[CH2:18][C:19]1=[O:20])[CH2:3][CH2:4][CH2:5][CH2:6][C:7]([OH:9])=[O:8]Participants
3
Procedure
t-Butyl 6-hydroxy-6-(4,4-dimethyl-2,6-dioxocyclo-hexylidene)-hexanoate (100 mg, 0.30 mmol) was dissolved in CH2Cl2/TFA 1:1 mixture (2 ml) and stirred at room temperature for 1 h. The reaction mixture was evaporated giving 6-hydroxy-6-(4,4-dimethyl-2,6-dioxocyclohexylidene)-hexanoic acid (0.81 g, 98%)