The reaction of the 5-bromethyl-2-iminotetrahydrofuran hydrobromide with o-phenylene dinucleophiles affords 2-substitutd benzazoles. Thermal cyclization via azolium salt to saturated benzazole-azine is also described.
5-Bromomethyl-2-iminotetrahydrofuran hydrobromide: A useful cyclic imidate in the synthesis of benzazole-fused heterocycles
FANTIN, Giancarlo;FOGAGNOLO, Marco;MEDICI, Alessandro;PEDRINI, Paola;
1991
Abstract
The reaction of the 5-bromethyl-2-iminotetrahydrofuran hydrobromide with o-phenylene dinucleophiles affords 2-substitutd benzazoles. Thermal cyclization via azolium salt to saturated benzazole-azine is also described.File in questo prodotto:
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