A NOVEL RING ENLARGEMENT REACTION: SYNTHESIS OF 6,7 BENZO-2-PHENYL- 2,4-BISAZACYCLOHEPTANE-1,5-DIONE.

S R Ramadas, K Narayanan

Abstract


Condensation of N-(tosyloxymethyl)phthalimide with aniline compound (III) in 20% yield instead of the hitherto known N-(N'-anilinomethyl) phthalimide (V)

Keywords


Nucleophilic addition-elimination, Internal Michael addition, ring enlargement, new heterocyclic system.

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