期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2019, 期 26, 页码 4133-4138出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201801861
关键词
Cycloaddition; Rearrangement; Nitrogen heterocycles; Pericyclic reactions; Ring contraction
The reaction of di(methoxycarbonyl)tetrazine with substituted cycloprop-2-ene-1-carboxylates gives a series of 3,4-diazanorcaradienes and 1,2-diazepines. The influence of the nature of cyclopropenes and the reaction conditions on its selectivity was investigated. The addition of nucleophiles to norcaradienes was studied and a rare example of the walk rearrangement in this class of compounds was revealed.
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