期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 23, 期 40, 页码 9477-9480出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201702190
关键词
alkenes; aryldiazonium tetrafluoroborate; hydroxylamines; multicomponent reactions; sulfur
资金
- National Natural Science Foundation of China [21372046, 21532001]
A four-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, alkenes, and hydroxylamines under mild conditions is accomplished. No catalyst or additive is needed for the vicinal difunctionalization of alkenes with the insertion of sulfur dioxide. Not only DABCO center dot(SO2)(2) ( DABCO=1,4-diazabicyclo[2.2.2] octane) but also potassium metabisulfite (K2S2O5) is effective in this transformation. The multicomponent reaction proceeds efficiently at room temperature with broad substrate scope, leading to the corresponding products in good yields.
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