Cyclopentane Synthesis
Et CHN2 O OAc Cu(a cac), 75 °C 35% t OAc 1. 4% NaOH/MeOH reflux, 2 h, 90% 2 .Lindlart,H2,95% O cis-jasmone ... from a ketone to a cyclopentenone. McMurry used this approach in his synthesis of Aphidicolin. JACS, 1979, 101, 1330-1332. O O H H O O H H O O O O O H H H O OH H H HO OH CH2OH Aphidicolin LDA; I 89%
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