described. These compounds distilled under reduced pressure without change in composition and the possibility that titanium exhibits here a covalency of 5 is considered. The new alkoxides TiCl,*OR where R = Me, Et, Pri, and Bun were readily obtained from the rapid radical-interchange reaction between the tetrachloride and the appropriate tetra-alkoxide. Certain of the titanium chloride alkoxides disproportionate when heated under reduced pressure.TITANIUM CHLORIDE ETHOXIDES have been known since 1875 when DemarCay (Compt. rend., 1875, 80, 51) reported that the reaction between titanium tetrachloride and ethanol led to the formation of a crystalline solid to which he assigned the formula TiCl(OEt),,HCl. Sixty years elapsed before the error in this formulation was pointed out and the correct fonnula TiCl,(OEt),,EtOH deduced by Jennings, Wardlaw, and Way (J., 1936, 637). In addition these authors demonstrated that in general the reaction between titanium tetrachloride and an alcohol took the course : TiC1, + 3ROH + TiCl,(OR),,ROH + 2HC1 Further it was shown that titanium monochloride triethoxide could be prepared from titanium tetraethoxide and acetyl chloride :