Unexpected tandem ylide annulation reaction for controllable synthesis of 2H-chromenes and 4H-chromenes

Long-Wu Ye; Xiu-Li Sun; Chun-Yin Zhu; Yong Tang

doi:10.1021/ol0615174

Unexpected tandem ylide annulation reaction for controllable synthesis of 2H-chromenes and 4H-chromenes

Org Lett. 2006 Aug 17;8(17):3853-6. doi: 10.1021/ol0615174.

Authors

Long-Wu Ye¹, Xiu-Li Sun, Chun-Yin Zhu, Yong Tang

Affiliation

¹ State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, PRC.

PMID: 16898834
DOI: 10.1021/ol0615174

Abstract

[reaction: see text] An unexpected tetrahydrothiophene-catalyzed ylide annulation reaction, via tandem Michael addition/elimination/substitution, for the controllable synthesis of 2H-chromenes and 4H-chromenes has been developed.