INTERACTION OF THIONYL CHLORIDE AND AROMATIC HYDROXY  KETONES AND THEIR DERIVATIVES IN PRESENCE OF FINELY  DIVIDED COPPER. PART X. PREPARATION OF 3 : 3'-DI-BENZOYL-2 : 6:2'-6'- AND -4 :6 - 4' :6"-TETRAHYDROXY- DIPHENYL THIOETHERS AND THEIR DERIVATIVES
Zenodo (CERN European Organization for Nuclear Research)