Arynic species; effect of substituents on the reactivity of monosubstituted dehydrobenzenes
1986; Elsevier BV; Volume: 42; Issue: 1 Linguagem: Inglês
10.1016/s0040-4020(01)87413-5
ISSN1464-5416
AutoresF. Gaviña, Santiago V. Luis, Ana M. Costero, Pedro Gil,
Tópico(s)Oxidative Organic Chemistry Reactions
ResumoAbstract 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.
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