1984•Angewandte Chemie International Edition in EnglishRequires access

Delocalized Carbocations, Carbanions and Radicals of 2,4,6‐Substituted 1‐Methoxy‐1‐oxo‐λ5‐phosphinines

Karl Dimroth, Hans Kaletsch, Trupti N. Dave

Abstract

The salts 2, containing deep-colored cations, are obtained on reaction of the cyclie phosphinates 1 with trifluoroacetic acid. The 5π-delocalization explains the stability of the carbocations in 2. The salts 3, containing delocalized anions, and the radicals 4 can be obtained from 2 (R1 = R2 = Ph or p-C6H4OCH3).

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Key concepts: Carbocation, Delocalized electron, Carbanion, Trifluoroacetic acid, Radical, Chemistry, Medicinal chemistry, Photochemistry