Abstract

Two photochemical methods for the preparation of arenetricarbonylchromium(0) complexes are described. The first involves irradiation of a solution of hexacarbonylchromium(0) and arene in THF at room temperature with a medium pressure mercury lamp. In the second a suspension of hexacarbonylchromium(0) in THF is irradiated in the same way and the arene then added. The yields are generally lower than those obtained by the usual thermal methods, but there is advantage in the milder reactions conditions.

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