反应详情

A mixture of 38.9 g. (0.153 mole) of 2-(3-benzyloxyphenyl)-2-methylpropanal, 20 g. 5% Pd/C/50% water, 1.0 sodium bicarbonate and 150 ml. ethanol was shaken overnight under 55 psi of hydrogen. The reaction was filtered through diatomaceous earth, the filter cake washed with ethanol and the combined filtrate evaporated. The residue was reduced as above for another 8 hours. Another 10 g. portion of catalyst was added and the reaction continued overnight. The reaction was worked-up as above and the residue purified via column chromatography on 500 g. of silica gel eluted with 25% ether-hexane to yield 14 g. (56%) of the title compound as an oil.

1. additionA mixture of 38.9 g
2. filtrationThe reaction was filtered through diatomaceous earth
3. washthe filter cake washed with ethanol
4. customthe combined filtrate evaporated
5. customwas reduced as above for another 8 hours
6. additionportion of catalyst was added
7. customthe reaction continued overnight
8. custompurified via column chromatography on 500 g
9. washof silica gel eluted with 25% ether-hexane
10. customto yield 14 g