HCID 10361925, compound → HCID 9972006, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5](/[CH:20]=[C:21](\[CH3:27])/[C:22]([O:24]CC)=[O:23])[C:6]2[C:11]([C:12]=1[O:13]COC)=[C:10]([CH2:17][CH2:18][CH3:19])[CH:9]=[CH:8][CH:7]=2>CC(C)=O>[OH:13][C:12]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][C:10]=2[CH2:17][CH2:18][CH3:19])[C:5](/[CH:20]=[C:21](/[CH3:27])\[C:22]([OH:24])=[O:23])=[CH:4][C:3]=1[O:2][CH3:1]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
196.5 g of ethyl (E)-3-(3-methoxy-4-methoxymethoxy-5-propyl-1-naphthyl)-2-methylpropenoate was dissolved in 2.6 liters of acetone and irradiated with light from a high pressure mercury lamp through a Pyrex filter for 2.5 hours. The reaction mixture was concentrated in vacuo and purified by silica gel column chromatography (3% ethyl acetate/hexane) to obtain 59.2 g of the titled compound as a pale yellow oil. At the same time, 136.4 g of a mixture of the E and Z isomers was recovered.
Workup
- customirradiated with light from a high pressure mercury lamp through a Pyrex