Abstract:According to the NMR spectroscopic data, the oxidation of triphenylantimony with 4 hydroperoxy 2 hydroxy 3,4,6 triisopropylcyclohexa 2,5 dienone involves three steps. The first step affords the 2,4,10,12 tetraoxa 3,11 distibatricyclo[11.3.1.1 5,9 ]octadecatetraene de rivative. The latter is rearranged into benzodioxastibolone derivatives followed by the rear rangement into 4,6,7 triisopropyl 2,2,2 triphenyl 1,3,2 benzodioxastibol 5 ol. The transfor mation of the latter depends on the presence of oxygen and the… Show more
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