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Your search keyword '"Itoh, Tomoki"' showing total 3 results
Start Over Author "Itoh, Tomoki" Topic annulation reactions
3 results on '"Itoh, Tomoki"'

1. ChemInform Abstract: Concise Total Syntheses of Pyrido[4,3-b]carbazole Alkaloids Using Copper-Mediated 6π-Electrocyclization.

Author

Itoh, Tomoki, Abe, Takumi, Choshi, Tominari, Nishiyama, Takashi, Yanada, Reiko, and Ishikura, Minoru

Subjects
*CHEMICAL synthesis, *CARBAZOLE, *ALKALOIDS
Abstract

Cu-catalyzed 6π-electrocyclization of triene-substrates of type (I) provides a facile access to pyrido[4,3-b]carbazoles, which represent advanced intermediates for the construction of various ellipticine and olivacine alkaloids. [ABSTRACT FROM AUTHOR]

Published
2016
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3. ChemInform Abstract: One-Pot Synthesis of Tryptanthrin by the Dakin Oxidation of Indole-3-carbaldehyde.

Author

Abe, Takumi, Itoh, Tomoki, Choshi, Tominari, Hibino, Satoshi, and Ishikura, Minoru

Subjects
*PYRIMIDINE derivatives, *HETEROCYCLIC compounds synthesis, *OXIDATION, *INDOLE compounds, *ALKALOIDS
Abstract

The alkaloid tryptanthrin (IIa) is further converted into the natural products phaitanthrin A (IXa), phaitanthrin B (IXb), and cruciferane (X). [ABSTRACT FROM AUTHOR]

Published
2015
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