[C:1]([C:3]([C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([O:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[CH3:23])[C:11]=1[O:24][CH3:25])(C)[C:4]([O:6]CC)=[O:5])#N.Cl>C(O)(=O)C>[CH3:25][O:24][C:11]1[C:12]([O:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[CH3:23])=[CH:13][CH:14]=[CH:15][C:10]=1[CH:3]([CH3:1])[C:4]([OH:6])=[O:5]A mixture of ethyl 2-cyano-2-[2-methoxy-3-(o-tolyloxy)phenyl]propionate (6.1 g), conc. hydrochloric acid (20 ml) and acetic acid (40 ml) was refluxed under heating for 48 hours. The reaction mixture was treated in a similar manner to that of Example 10-(6) to give oily 2-[2-methoxy-3-(o-tolyloxy)phenyl]propionic acid (2.9 g).
불러오는 중…