Synthesis Of 2,3,3a,9a-Tetrahydro-1h-Cyclopenta[B]Quinoxaline-1,3,4,9-Tetracarboxylat E By Cyclization Of 1,5-Bis[(Trimethylsilyl)Oxy]Penta-1,4-Dienes With Quinoxalines

Sven Rotzoll,Holger Feist,Joerg-Peter Guetlein,Dirk Michalik,Nazken K. Kelzhanova,Zharylkasyn A. Abilov,Alexander Villinger,Peter Langer

HELVETICA CHIMICA ACTA（2015）

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Abstract

The cyclization of 1,5-bis[(trimethylsilyl)oxy]penta-1,4-dienes with quinoxalines and chloroformates afforded 2,3,3a,9a-tetrahydro-1H-cyclopenta[b]quinoxaline-1,3,4,9-tetracarboxylate.

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Key words

Silyl enol ethers, Penta-1, 4-dienes, 1, 5-bis[(trimethylsilyl)oxy]-, Quinoxalines, Formates, chloro-, Iminium salts

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