Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 84, Issue 23, Pages 15283-15293Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.9b02300
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Funding
- National Natural Science Foundation of China [21861006, 21861015]
- Natural Science Foundation of Guangxi [2018GXNSFBA138050, 2017GXNSFBA198205]
- Special Fund for Talents of Guangxi [AD18281028, AD18281035]
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A visible light-induced cascade cyclization of thioamides with alkynes was developed to synthesize 1,3-thiozoles. The sulfur radical generated from thioamide via the single-electron transfer (SET) pathway was promoted by photocatalysis as a key intermediate in this reaction. When bromoalkynes were used as the substrate, the self-coupling products 1,1-dibromo-1-en-3-ynes were obtained in moderate yields, and an energy transfer pathway for this transformation promoted by visible-light photocatalysis was proposed.
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