3,4-dihydro-2H-pyran → p-Anisoin tetrahydropyranyl ether
Reaktionsgleichung
[C:1]1([C:9]([CH:11]([C:13]2[CH:20]=[CH:19][C:16]([O:17][CH3:18])=[CH:15][CH:14]=2)[OH:12])=[O:10])[CH:8]=[CH:7][C:4]([O:5][CH3:6])=[CH:3][CH:2]=1.[O:21]1[CH:26]=[CH:25][CH2:24][CH2:23][CH2:22]1>C1C=CC=CC=1>[O:21]1[CH2:26][CH2:25][CH2:24][CH2:23][CH:22]1[O:10][CH:9]([C:1]1[CH:2]=[CH:3][C:4]([O:5][CH3:6])=[CH:7][CH:8]=1)[C:11](=[O:12])[C:13]1[CH:14]=[CH:15][C:16]([O:17][CH3:18])=[CH:19][CH:20]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
82 parts of p-anisoin are reacted with 34 parts of 3,4-dihydro-2H-pyran (approx. 35% molar excess) in 500 parts by volume of benzene, analogeously to Example 1. p-anisoin tetrahydropyranyl ether is obtained in a yield of 71.6% and melts over the range of 96° to 102° C.