Trihalo-2-sulfanylpropan-2-ols: New Preparatively Accessible Synthons. -A facile synthesis of thiols (II) and (IV) becomes possible via acid-catalyzed addition of H2S to ketones. -(DOROFEEV, I. A.; SHAGUN, L. G.; SHAGUN, V. A.; MIKHAILOVA, I. A.; TORYASHINOVA, D. S.-D.; VORONKOV, M. G.; Russ.