Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 86, Issue 21, Pages 15177-15184Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.1c01778
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Funding
- National Natural Science Foundation of China [21901178]
- Natural Science Foundation of Zhejiang Province [LY21B020002]
- Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang [2019R01005]
- Open Research Fund of School of Chemistry and Chemical Engineering, Henan Normal University [2020ZD04]
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A catalyst-, base-, and additive-free three-component reaction was developed for the synthesis of heteroaryl-substituted sulfonyl compounds under mild conditions. Various functional groups were well tolerated in this transformation, demonstrating a broad substrate scope. The preliminary mechanistic investigation indicated that the reaction proceeds through a radical process.
The generation of heteroaryl-substituted sulfonyl compounds via a catalyst-, base-, and additive-free three-component reaction of heteroaryl-substituted tertiary alcohols, aryldiazonium tetrafluoroborates, and DABCO center dot(SO2)(2) under mild conditions is developed. Various functional groups are tolerated well in this transformation, and a broad substrate scope is demonstrated. A preliminary mechanistic investigation shows that this reaction undergoes a radical process, including the insertion of sulfur dioxide, sulfonyl radical addition to unactivated alkene, and remote heteroaryl ipso-migration.
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