Attempt to Use a β-ketosulfone Bearing a Simple Phenyl Group in the Lewis Acid Promoted Substitution Reaction
Ketosulfonyl indoles in the regiodefined synthesis of tryptophols and related indole derivatives
Scheme8
The peculiar behavior of the indole ring in deter- mining the special reactivity of ketosulfonyl indoles 3 is further highlighted by a test experiment carried out on the parent β-keto- sulfone 14 in which the indole nucleus is substituted by a phenyl ring (Scheme 8).
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