Kinetic energy release and position of transition state during intramolecular aromatic substitution in ionized 1-phenyl-1-(2-pyridyl) ethylenes

R Schubert, HF Gruetzmacher

Index: Schubert, Ralf; Gruetzmacher, Hans-Friedrich Journal of the American Chemical Society, 1980 , vol. 102, # 16 p. 5323 - 5328

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Citation Number: 12

Abstract

Abstract: The loss of substituents (X= H, F, CH3, CI, Br, I) from the molecular ions of ortho- substituted l-phenyl-l-(2-pyridy1) ethylenes la-f and of the isomeric l-phenyl-l-(3-pyridyl)-and l-phenyl-l-(4-pyridyl) ethylenes 2 and 3 has been investigated. Cyclic fragment ions a are formed from the ortho-substituted l-phenyl-l-(2-pyridyl) ethylene molecular ions by an intramolecular aromatic substitution reaction. The energetic requirements of this reaction ...