Reactions of some 2H-Chromenes and 2H-Thiochromenes with triazolinediones

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Abstract

Simple 2H-chromenes and 2H-thiochromenes form the [2+2]-adducts, tetrahydro[1]benzo(thio)pyrano[3,4-c] [1,2]diazeto[1,2-a][1,2,4]triazoles, with triazolinediones, whereas their 3- and 4-bromo and the corresponding cycloalkylamino derivatives undergo an overall etectrophilic substitution sequence.

Original languageEnglish
Pages (from-to)13277-13290
Number of pages14
JournalTetrahedron
Volume51
Issue number48
DOIs
Publication statusPublished - 1 Nov 1995
Externally publishedYes

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