STUDIES ON THE DEUTERATION OF AROMATIC ORGANOSULFUR COMPOUNDS USING AQUEOUS TRANSITION METAL SPECIES
Reaction of benzenethiols and benzothiophene (BT) with D2O solutions of trichlorides of Ru, Fe or Cr at elevated temperatures (200-315 deg C) constitutes a simple method for the preparation of perdeuterated derivatives.Substitution patterns observed for partially deuterated products imply that D-incorporation occurs by standard electrophilic process.Reactions with benzenethiols produced diaryl sulfides as by-products although these compounds were deuterated to the same extent as the thiols.Experimental observations and the known behaviour of aqueous transitionmetal species indicate that D+ is furnished by the hydrolysis of D2O molecules in the solvation sphere of the metal ion.Complete deuteration of the organosulfur substrates was achieved using a 100:1 organosulfur/metal chloride mole ratio.Hydrodesulfurization of per-deuteroBT under standard conditions afforded perdeuteroethylbenzene in good yield.Key words: Aromatic organosulfur compounds; deuteration; aqueous transition metal salts.
Clark, Peter D.,Primak, Alex
p. 149 - 158
(2007/10/02)
Thermally Activated Magnesium Oxide as a Selective Deuteration Catalyst under Mild Conditions
-
Hoq, M. Fazlul,Klabunde, Kenneth J.
p. 2114 - 2116
(2007/10/02)
More Articles about upstream products of 25837-05-2