反应详情

The diol of Example 3, 0.27 g, was reduced in MeOH with 60 psi H2 at 60° in 3 hrs using 5% Rh/C catalyst. After filtering, the solvent was stripped off and the 0.27 g of white crystals were recrystallized from CH2Cl2 -hexane to furnish tiny needles of the title compound, 0.19 g, mp 126°-128°; further recrystallization gave mp 128.5°-129.5° Rf (ether): single spot, 0.8.

1. filtrationAfter filtering
2. customthe 0.27 g of white crystals were recrystallized from CH2Cl2 -hexane