Toluene → HCID 13335396、化合物

反応式

C(O[C:5]1([CH3:16])[CH:9]=[CH:8][C:7](=[O:10])[CH:6]1[CH2:11][CH2:12][CH2:13][CH2:14][CH3:15])(=O)C.C1(C)C=CC=CC=1.[C:24]([O-:27])(=[O:26])[CH3:25].[Na+]>C(O)(=O)C>[C:24]([O:27][CH:9]1[CH2:8][C:7](=[O:10])[C:6]([CH2:11][CH2:12][CH2:13][CH2:14][CH3:15])=[C:5]1[CH3:16])(=[O:26])[CH3:25]

参加物

実験手順

In the same apparatus as in Example 1, 3-acetoxy-2-n-pentyl-3-methyl-4-cyclopentenone (22.4 g), toluene (60 ml), acetic acid (10 ml) and sodium acetate (4 g) were charged and heated for 10 hours with agitation. After the completion of the reaction, acetic acid was evaporated off under reduced pressure. The residue was extracted with toluene (70 ml) and water (50 ml) and treated as in Example 1 to obtain 4-acetoxy-2-n-pentyl-3-methyl-2-cyclopentenone (18.6 g). Yield, 83%, B.P., 125°-135° C./0.2-0.5 mmHg.