Journal
ORGANIC CHEMISTRY FRONTIERS
Volume 8, Issue 24, Pages 6979-6984Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qo01177d
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Funding
- National Natural Science Foundation of China [22161039]
- Excellent Young Teachers Plan of Bingtuan [2017CB001, CZ027203, CZ002203]
- International Cooperation Project of Shihezi University [GJHZ201801]
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A mild and transition-metal free tandem reaction has been developed for the construction of 6H-benzo[c]thiochromenes. Thionoesters react with arynes to afford different structures of products in yields ranging from 37-80% and 51-75%.
A mild and transition-metal free tandem reaction for the construction of 6H-benzo[c]thiochromenes has been developed. Thionoesters react with two molecules of arynes through a Diels-Alder cycloaddition/nucleophilic arylation process to afford 6-alkoxy-6-aryl-6H-benzo[c]thiochromenes in 37-80% yields. In addition, the Diels-Alder cycloaddition/aromatization tandem reaction of thionoesters with one molecule of aryne provides the construction of 6-alkoxyl-6H-benzo[c]thiochromenes in 51-75% yields.
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