1987
DOI: 10.1002/chin.198701069
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K. SAITO,
T. MUKAI,
S. IIDA

Abstract: 069ChemInform Abstract The reaction of the azepine (I) with the quinone (II) yields the (6 + 4)-type cycloadduct (III) as main product and the (2 + 4)-type cycloadducts (IV) and (V) as by-products. In this reaction the diketone moiety of (II) is used as the 4π component. (IV) nd (V) are considered to be formed via a Diels-Alder reaction. The mechanism for the formation of (III) is discussed. Rearrangement to (V) occurs when (III) is heated to 90 rc C. Using the diazepine (VI) in the reaction with (II) only th…

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