Harunganin: A Crystallographic Determination of an Unknown Structure

In DMSO-t-BuOH-t-BuO- solutions these compounds are oxidized to mixtures of the carboxylic acid and stilbene. Representative data for phenyl p-tolyl sulfone are given in Table 11. AUTOXIDATIOSOF

TABLE I1 PHENYL TOLYL SULFONE I N RI-20

DIMETHYL SULFOXIDE-t-~UTYI.

.ALCOHOL

SOLLrTIOSS AT

250,t Or absorbed,h mmole

Time, min.

C6HsSOzC~HICO?H, mmole )

(CsHsSO2CsH4CH=.)?, mmole

l1.87(33',~1

I)imrr/ acid

11