Concepedia

Unexpected Tandem Ylide Annulation Reaction for Controllable Synthesis of 2<i>H</i>-Chromenes and 4<i>H</i>-Chromenes

Long‐Wu Ye, Xiu‐Li Sun, Chunyin Zhu, Yong Tang

Organic Letters · 2006 · 105 citations · 22 references

DOI

Concepts

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.

References

22

Esters of 2,3-Dihydro-3-oxobenzofuran-2-acetic Acid and 3,4-Dihydro-4-oxo-2H-1-benzopyran-3-acetic Acid by Intramolecular Stetter Reactions

Engelbert Ciganek · Synthesis · 1995 · 109 citations

, , +4

Ring-closing metathesis for the synthesis of 2H- and 4H-chromenes

Willem A. L. van Otterlo, E. Lindani Ngidi, Samuel Kuzvidza et al. · Tetrahedron · 2005 · 108 citations

, , +10

Total Synthesis of the Highly Potent Anti-HIV Natural Product Daurichromenic Acid along with Its Two Chromane Derivatives, Rhododaurichromanic Acids A and B

Ying Kang, Yan Mei, Yuguo Du et al. · Organic Letters · 2003 · 94 citations

, , +17

New Isoprenylated Flavones, Artochamins A−E, and Cytotoxic Principles from <i>Artocarpus </i><i>c</i><i>hama</i>

Yong-Hong Wang, Ai-Jun Hou, Lei Chen et al. · Journal of Natural Products · 2004 · 87 citations

, , +8

Antibacterial Xanthones from the Leaves of <i>Garcinia nigrolineata</i>

Vatcharin Rukachaisirikul, Mayuree Kamkaew, Dusadee Sukavisit et al. · Journal of Natural Products · 2003 · 77 citations

, , +5