[C:1]1([CH:7]([CH3:12])[CH2:8][C:9](=[O:11])[CH3:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:13](Cl)(=[O:17])[CH:14]([CH3:16])[CH3:15]>>[C:13]([C:4]1[CH:5]=[CH:6][C:1]([CH:7]([CH3:12])[CH2:8][C:9](=[O:11])[CH3:10])=[CH:2][CH:3]=1)(=[O:17])[CH:14]([CH3:16])[CH3:15]As in Example 1 except using 4-phenyl-2-pentanone instead of benzyl acetone, and iso butyryl chloride instead of benzoyl chloride b.p. 130-134 (0.4 mm).
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