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Cycloadditions of Diazoalkanes to 1-Alkenes†
†
Dedicated to Professor Matthias Seefelder on the occasion of his 60th birthday
Graphical Abstract
Unchartered areas on the map of cycloadditions are becoming rarer and rarer. The hitherto neglected title reaction has now been studied with simple model systems; MO calculations are confirmed by the experimentally discovered formation of 3-substituted 1-pyrazolines (R = H, n-butyl, benzyl).
