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Autor:
Hans-Jürgen Hansen, Pinar Göksaltık, Zoltan A. Molnar, Anthony Linden, Khaled Abou-Hadeed, Roland W. Kunz
Publikováno v:
Helvetica Chimica Acta. 95:885-921
Dimethyl heptalene-4,5-dicarboxylates† undergo preferentially a Michael addition reaction at C(3) with α-lithiated alkyl phenyl sulfones at temperatures below −50°, leading to corresponding cis-configured 3,4-dihydroheptalene-4,5-dicarboxylates