[C:1](O)(=[O:10])[CH:2]=[CH:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.[C:12]1([CH:19]=[CH:18][C:16]([OH:17])=[CH:15][CH:14]=1)[OH:13]>CCOCC>[OH:13][C:12]1[CH:19]=[C:18]2[C:16](=[CH:15][CH:14]=1)[O:17][C:1](=[O:10])[CH2:2][CH:3]2[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=16-Hydroxy-4-phenyl-3,4-dihydrocoumarin (II) was prepared in a similar way in 97% yield from cinnamic acid and hydroquinone. M.p. 138° (IPE-Ether).
読み込み中…