36112-45-5Relevant academic research and scientific papers
THERMAL ADDITION REACTIONS TO BENZOCYCLOBUTENONES STUDIED BY FLASH PHOTOLYSIS
Schiess, P.,Eberle, M.,Huys-Francotte, M.,Wirz, J.
, p. 2201 - 2204 (2007/10/02)
Ortho-quinoid vinylketenes 2 have been generated thruogh flash photolysis of benzocyclobutenones 1.A kinetic study of intermolecular addition reactions of 2 competing with the recyclization 2 -> 1 reveals strikingly different substituent effects for the addition of methanol and of dienophiles.
Linearly Condensed peri-Hydroxy Aromatic Compounds Derived from the Cycloaddition Reaction of Homophtalic Anhydrides with Dienophiles
Tamura, Yasumitsu,Wada, Akimori,Sasho, Manabu,Kita, Yasuyuki
, p. 2691 - 2697 (2007/10/02)
Thermal treatment of homophthalic anhydrides (1 and 2) with various dienophiles (3-12) caused cycloaddition with spontaneous extrusion of carbon dioxide to give the corresponding linearly condensed peri-hydroxy aromatic compounds (13-23) in considerable yields.A possible mechanism for these reactions is proposed.Keywords - cycloaddition; homophthalic anhydride; thermal reaction; carbon dioxide extrusion; regiocontrolled reaction; linearly condensed phenolic compound; peri-hydroxy aromatic compound; tetracyclic compound
