Tetrahedron

Arynic species; effect of substituents on the reactivity of monosubstituted dehydrobenzenes

F Gavina, SV Luis, AM Costero, P Gil

Index: Gavina, F.; Luis, S. V.; Costero, A. M. Tetrahedron, 1986 , vol. 42, # 1 p. 155 - 166

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Citation Number: 28

Abstract

Evidence is presented demonstrating the existence of free dehydrobenzenes in the thermal decomposition of diaryliodonium-2-carboxylates, and that o-benzyne itself and its 4-methyl-, 4-chloro-, 4-bromo-and 4-nitro-derivatives are generated from insoluble polymer-bound precursors and trapped by a second solid phase in Diels-Alder reactions. Lifetimes for these elusive species are determined.