ChemInform Abstract: 1,3-Dipolar Cycloaddition Reactions of 2,4,6-Cycloheptatrien-1-imines with Benzonitrile Oxides Leading to 1,2,4-Oxadiazaspiro(4.6)undeca-2,6, 8,10-tetraenes.
Abstract
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ChemInform Abstract
Thermal isomerizations forming compounds of type (IV) and addition reactions of (III) show that the contribution of a valence isomerization between cycloheptatriene and norcaradiene lays to the side of the cycloheptatriene form.