Scandium trifluoromethanesulfonate as catalyst in the hydrogen/deuterium exchange of 1,3,5-trimethoxybenzene: Evidence for a direct interaction of scandium with the aromatic ring
Cb. Castellani et al., Scandium trifluoromethanesulfonate as catalyst in the hydrogen/deuterium exchange of 1,3,5-trimethoxybenzene: Evidence for a direct interaction of scandium with the aromatic ring, TETRAHEDRON, 56(41), 2000, pp. 8161-8166
Scandium trifluoromethanesulfonate in CD3OD is a very active catalyst for h
ydrogen/deuterium exchange at the aromatic nucleus of 1,3,5-trimethoxybenze
ne. The very low proticity of the system, spectrophotometric evidence, and
easy iodination of the substrate point to the formation of a transient unpr
ecedented arylscandium species as a plausible intermediate of the reaction.
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