2,4-Dimethoxybenzaldehyde → HCID 178490174, Verbindung
Reaktionsgleichung
[CH3:1][O:2][C:3]1[CH:10]=[C:9]([O:11][CH3:12])[CH:8]=[CH:7][C:4]=1[CH:5]=O.[C:13]([C:16]1[C:17](=[O:24])[O:18][CH:19]([CH3:23])[CH2:20][C:21]=1[OH:22])(=[O:15])[CH3:14].[C:25](C1C(=O)OC(C)=CC=1O)(=[O:27])C>>[OH:22][C:21]1[CH2:20][CH:19]([CH3:23])[O:18][C:17](=[O:24])[C:16]=1[C:13](=[O:15])/[CH:14]=[CH:5]/[C:4]1[CH:7]=[CH:8][C:9]([O:11][CH3:12])=[C:10]([O:27][CH3:25])[C:3]=1[O:2][CH3:1]Komponenten
4
Versuchsvorschrift
Proceeding as in Reference 5, Step 5.1, but substituting 2,3,4-timethoxy-benzaldehyde for 2,4-dimethoxybenzaldehyde and 3-acetyl-4-hydroxy-6-methyl-5,6-dihydro-pyran-2-one for 3-acetyl-4-hydroxy-6-methyl-pyran-2-one, provided 4-hydroxy-6-methyl-3-[(E)-3-(2,3,4-trimethoxy-phenyl)-acryloyl]-5,6-dihydro-pyran-2-one.