SYNTHESIS OF ENANTIOPURE PYRROLO[3,4-cPYRAZOLE DERIVATIVES VIA INTRAMOLECULAR CYCLOADDITION OF HOMO-CHIRAL NITRILIMINES

Gianluigi Broggini Dipartimento di Scienze Chimiche Fisiche e Matematiche, Università dell'Insubria, via Lucini 3, Como, 22100, Italy

Giorgio Molteni Dipartimento di Chimica Organica e Industriale, Università di Milano, via Golgi 19, Milano, 20133, Italy

Tullio Pilati Dipartimento di Chimica Organica e Industriale, Università di Milano, via Golgi 19, Milano, 20133, Italy

Gaetano Zecchi Dipartimento di Scienze Chimiche Fisiche e Matematiche, Università dell'Insubria, via Lucini 3, Como, 22100, Italy

Abstract

Intramolecular cycloaddition of homochiral nitrilimines 8 was exploited to obtain enantiopure pyrrolo[3,4-c]pyrazole derivatives 9 and 10 with high overall yields.

ACKNOWLEDGMENTS

We are grateful to CNR and MURST for financial support.

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SYNTHESIS OF ENANTIOPURE PYRROLO[3,4-cPYRAZOLE DERIVATIVES VIA INTRAMOLECULAR CYCLOADDITION OF HOMO-CHIRAL NITRILIMINES

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SYNTHESIS OF ENANTIOPURE PYRROLO[3,4-cPYRAZOLE DERIVATIVES VIA INTRAMOLECULAR CYCLOADDITION OF HOMO-CHIRAL NITRILIMINES

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