Tetrahedron letters

Syntheses and Diels-Alder reactions of 2-alkylazo-substituted 1, 3-butadienes

K Banert, M Hagedorn

Index: Banert, Klaus; Hagedorn, Manfred Tetrahedron Letters, 1992 , vol. 33, # 48 p. 7331 - 7334

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Citation Number: 24

Abstract

Abstract 1-Alkyl-1-(2, 3-butadienyl) hydrazines 1b, d—g can be oxidized under mild conditions to yield 1-alkyl-2-(1-methylen-2-propenyl) diazenes 3. These E-configurated azo compounds are precursors for rapid inter-and intramolecular [4+ 2] cycloadditions to give ...