Multicomponent Approach for the Synthesis of Phenanthridine and Acridine Ring Systems via the Coupling of Fischer Carbene Complexes with Hetero­aromatic o-Alkynyl Carbonyl Derivatives

Abstract

A one-pot multicomponent synthesis of phenanthridine and acridine derivatives is described. This method includes the in situ generation of furo[3,4-c]isoquinoline and furo[3,4-b]quinoline intermediates by the coupling of heteroaromatic o-alkynyl carbonyl derivatives with Fischer carbene complexes and subsequent trapping of these intermediates by suitable dienophiles.

Key words

azaisobenzofuran - heterocycles - Diels-Alder reaction - chromium - carbene complexes

References

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