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Your search keyword '"Srinivasu, Ejjirotu"' showing total 4 results
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4 results on '"Srinivasu, Ejjirotu"'

3. Dearomative ipso-Cyclization to Spiropseudoindoxyls: An Extendable Approach To Access Indolo[3,2-c]quinolinones and Isocryptolepine

Author

Reddy, Chada Raji, Theja, Agnuru, Srinivasu, Ejjirotu, and Subbarao, Muppidi

Abstract

A metal-free oxidative intramolecular dearomative spirocyclization of indole-3-formyl-2-carboxamides has been developed for the first time, affording spiropseudoindoxyls in good yields. This domino process proceeds through sequential oxidation, decarboxylation and ipso-arylation. The unique feature of this approach includes the compatibility of N-protected-indole-2-carboxamides. Further, a hitherto unknown rearrangement of spiropseudoindoxyls to indoloquinolones has been achieved. The synthetic utility of this strategy has also been showcased by the construction of a natural alkaloid, isocryptolepine.

Published
2023
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4. Dearomative ipso -Cyclization to Spiropseudoindoxyls: An Extendable Approach To Access Indolo[3,2- c ]quinolinones and Isocryptolepine.

Author

Reddy CR, Theja A, Srinivasu E, and Subbarao M

Abstract

A metal-free oxidative intramolecular dearomative spirocyclization of indole-3-formyl-2-carboxamides has been developed for the first time, affording spiropseudoindoxyls in good yields. This domino process proceeds through sequential oxidation, decarboxylation and ipso -arylation. The unique feature of this approach includes the compatibility of N -protected-indole-2-carboxamides. Further, a hitherto unknown rearrangement of spiropseudoindoxyls to indoloquinolones has been achieved. The synthetic utility of this strategy has also been showcased by the construction of a natural alkaloid, isocryptolepine.

Published
2024
Full Text
View/download PDF

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