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The reactions of tellurium tetrachloride with acetone

✍ Scribed by Chang-Kai Huang; Harold Marhold; Daniel H. O'Brien; Kurt J. Irgolic

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
432 KB
Volume
5
Category
Article
ISSN
1042-7163

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✦ Synopsis

Abstract

The reactions of acetone with tellurium tetrachloride have been studied with the aid of proton, carbon‐13, and tellurium‐125 NMR spectroscopy. In the absence of a proton scavenger, such as sodium hydrogen carbonate, at ambient temperature, a 2 : 1 ratio of acetone to tellurium tetrachloride quickly forms mainly acetonyl tellurium trichloride. At higher temperatures and after longer periods, the initially formed acetonyl tellurium trichloride is converted to 2‐methyl‐4‐oxo‐2‐penten‐1‐yl tellurium trichloride through an acidcatalyzed aldol condensation. In the presence of sodium hydrogen carbonate, the condensation reaction is prevented, and an equilibrium mixture of acetonyl tellurium trichloride and bis(acetonyl) tellurium dichloride is formed.

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