Synthesis 2018; 50(12): 2416-2422
DOI: 10.1055/s-0037-1609483
paper
© Georg Thieme Verlag Stuttgart · New York

Efficient Synthesis of Chromenes from Vinyl o-Quinone Methides via a Brønsted Acid Catalyzed Electrocyclization Process

Si-Jia Liu
,
Xiao-Li Jiang
,
Shu-Fang Wu
School of Chemistry and Materials Science, and the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, P. R. of China   eMail: fshi@jsnu.edu.cn   eMail: guangjianM@jsnu.edu.cn   eMail: mstu2016@126.com
,
Man-Su Tu*
School of Chemistry and Materials Science, and the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, P. R. of China   eMail: fshi@jsnu.edu.cn   eMail: guangjianM@jsnu.edu.cn   eMail: mstu2016@126.com
,
Guang-Jian Mei*
School of Chemistry and Materials Science, and the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, P. R. of China   eMail: fshi@jsnu.edu.cn   eMail: guangjianM@jsnu.edu.cn   eMail: mstu2016@126.com
,
Feng Shi  *
School of Chemistry and Materials Science, and the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, P. R. of China   eMail: fshi@jsnu.edu.cn   eMail: guangjianM@jsnu.edu.cn   eMail: mstu2016@126.com
› Institutsangaben
We much appreciate the financial support from NSFC (21702077 and 21772069), the Natural Science Foundation of Jiangsu Province (BK20160003 and BK20170227), TAPP, and Six Kinds of Talents Project of Jiangsu Province (SWYY-025).
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Publikationsverlauf

Received: 31. Januar 2018

Accepted after revision: 17. März 2018

Publikationsdatum:
25. April 2018 (online)


Abstract

An efficient approach for the synthesis of chromene derivatives from vinyl o-quinone methides was established via a Brønsted acid catalyzed electrocyclization. By using this methodology, a series of structurally diversified chromenes was synthesized in a highly atom-economic and environmentally benign manner with generally good to excellent yields (up to 98% yield). This reaction will not only provide an efficient method for the construction of chromene scaffolds, but also enrich the research area of o-quinone methides.

Supporting Information