An efficient and high yielding process has been developed for the synthesis of 6-substituted 3-hydroxy tetrahydrocarbazoles by reacting in situ generated cyclohexanones from the corresponding protected ketals with substituted hydrazine hydrochlorides in the presence of dil. Sulfuric acid. A small library of fourteen compounds has been made with 92-97% yields to check the generality of the reaction.
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