반응 #456324

반응 방정식

5-(4-chlorophenyl)-4-hydroxy-5-methyl-3-phenylmethoxy-2(5H)-furanone

3,4-dihydroxy-5-methyl-5-phenyl-2(5H)-furanone

→

5-(4-chlorophenyl)-3,4-dihydroxy-5-methyl-2(5H)-furanone

수율 46.0%

반응 조건

실험 절차

Hydrogenolysis of 330 mg of 5-(4-chlorophenyl)-4-hydroxy-5-methyl-3-phenylmethoxy-2(5H)-furanone was performed in a similar manner as described in the preparation of 3,4-dihydroxy-5-methyl-5-phenyl-2(5H)-furanone to provided 110 mg (46% yield) of 5-(4-chlorophenyl)-3,4-dihydroxy-5-methyl-2(5H)-furanone a light tan solid: mp 154-155° C. dec.(benzene/hexanes) 1H NMR (acetone-d6) δ 7.52-7.34 (m, 4H), 1.82 (s, 3H). 13C NMR (acetone-d6) δ 169.0, 156.6, 139.8, 134.3, 129.2, 127.8, 117.9, 80.8, 24.6. Anal Calcd for C11H9ClO4 : C, 54.90; H, 3.77. Found: C, 54.74; H, 4.08.

출처