Iridium Complex-Catalyzed Intramolecular Ene-Type Reaction of 1,6-Enynes Accelerated in Ionic Liquid

Takanori Shibata, Mitsunori Yamasaki, Sho Kadowaki, Kentaro Takagi

Synlett · 2004 · 20 citations · 0 references

Concepts

Abstract

Iridium complex catalyzes an intramolecular ene-type reaction of 1,6-enynes to give cyclic 1,4-dienes. The reaction proceeds more efficiently in an imidazolium salt than in toluene and the ionic liquid can be reused.