Efficient synthesis of 4-halo-D3-trishomocubane derivatives
摘要:
Reaction of C-s-trishomocubane-8,11-diol with hydrohalic acids results in haloalcohols - 4,7-disubstituted derivatives of D-3-trishomocubane. The reaction involves the rearrangement of the trishomocubane skeleton and the stereoselective formation of 4,7-D-3-trishomocubanediol and 5-oxahexacyclo[5.4.1.0(2)(,6).0(3)(,10).0(4)(,8).0(9,12)]-dodecane as side products. The mechanism of the rearrangement was proposed. 7-Halo-D-3-trishomocuban-4-ols were oxidized to the corresponding haloketones. The structure of the major isomers of the haloketones was confirmed through X-ray analysis.[GRAPHICS].