3,3,5-Triphenyl-1,2-oxathiolane 2,2-dioxide

The reaction of 1,1,3-triphenyl-1,3-propanediol with thionyl chloride gave an unexpended product, namely, the title compound 3,3,5-triphenyl-1,2-oxathiolane 2,2-dioxide (2), C 21 H 18 O 3 S, which was identified by X-ray analysis