Collect. Czech. Chem. Commun. 1985, 50, 828-833

Reactions of chromocene with diols and some their derivatives

Jaroslava Kalousová, Ludvík Beneš, Jiří Votinský and Milan Nádvorník

Department of General and Inorganic Chemistry, Institute of Chemical Technology, 532 10 Pardubice


Chromocene reacts with diols having OH groups at 1,3 position or at a greater distance to give chromium(II) diolates. Only the chromium(II) diolates obtained from reactions with 1,2-diols give the chromium(III) diolates with excess of the reagent. Alkylation of one of these hydroxyl groups, however, prevents the oxidation-reduction course. The reaction of chromocene with 2-chloroethanol gives chromium(II) 2-chloroethanolate in the first step, chromium(III) 2-chloroethanolate being the final reaction product.