Journal
ORGANIC LETTERS
Volume 24, Issue 41, Pages 7560-7565Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c02954
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Funding
- National Natural Science Foundation of China
- Sichuan Science and Technology Program
- [21901168]
- [2021YJ0395]
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An iron-catalyzed four-component sulfonylthiocyanation reaction has been demonstrated, providing a feasible method for the preparation of beta-thiocyanated sulfone compounds. The reaction conditions are mild, with good functional group compatibility and broad substrate scope. Preliminary mechanistic investigation suggests the involvement of a radical pathway.
An iron-catalyzed four-component sulfonylthiocyanation between alpha,beta-unsaturated amides/esters, TMSNCS, aryldiazonium tetrafluoroborates, and sulfur dioxide (from SOgen) is demonstrated. This protocol is characterized by mild reaction conditions, good functional group compatibility, broad substrate scope, and good to excellent yields, providing a feasible method for the preparation of beta-thiocyanated sulfone compounds. The preliminary mechanism investigation shows that a radical pathway may be involved in the process.
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