Quinoxalino-fused sultines and their application in Diels–Alder reactions

Abstract

The synthesis of 7,8-disubstituted quinoxalino[2,3-d][1,2λ⁴]oxathiine 2-oxides 7a–c, precursors for quinoxalino-o-quinodimethanes 3a–c, and their application in the Diels–Alder reactions are reported.

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