Ethyl acetate hexane → 2-(1,3-Dihydro-6-methoxy-4-methoxyethoxymethoxy-7-methyl-3-oxoisobenzofuran-5-yl)-acetaldehyde
Reaction equation
[CH3:1][O:2][C:3]1[C:11]([CH3:12])=[C:10]2[C:6]([C:7](=[O:13])[O:8][CH2:9]2)=[C:5]([O:14][CH2:15][O:16][CH2:17][CH2:18][O:19][CH3:20])[C:4]=1[CH2:21][CH:22]=C(C)CCC(O)=O.CCCCCC.C(OCC)(=[O:38])C>>[CH3:1][O:2][C:3]1[C:11]([CH3:12])=[C:10]2[C:6]([C:7](=[O:13])[O:8][CH2:9]2)=[C:5]([O:14][CH2:15][O:16][CH2:17][CH2:18][O:19][CH3:20])[C:4]=1[CH2:21][CH:22]=[O:38]Participants
3
Procedure
By following the procedure of part A and substituting methyl (E) 6(4-t-butyldimethylsilyloxy-1,3-dihydro-6-methoxy-7-methyl-3-oxoisobenzofuran-5-yl)-4-methyl-4-hexenoate with (E) 6-(1,3-dihydro-6-methoxy-4-methoxyethoxymethoxy-7-methyl-3-oxoisobenzofuran-5-yl)-4-methyl-4-hexenoic acid, there was obtained 2-(1,3-dihydro-6-methoxy-4-methoxyethoxymethoxy-7-methyl-3-oxoisobenzofuran-5-yl)-acetaldehyde, m.p. 61°-63° C. (hexane-ethyl acetate).
Sources & evidence
- ORD record
- ord-8366c38d2d2d49f380e733e06df56b57
- Source dataset
- uspto-grants-1996_02
- Patent number
- US05493030
Reaction notes
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