Chemistry Letters, Vol.39, No.10, 1052-1054, 2010
Titanium Tetraiodide-promoted Tandem Prins Reaction of Alkynes with Acetals: Synthesis of (Z,Z)-1,5-Diiodo-1,3,5-triarylpenta-1,4-dienes
In the presence of titanium tetraiodide, a tandem Prins reaction of alkynes proceeded with acetals to give (Z,Z)-1,5-diiodo-1,3,5-triarylpenta-1,4-dienes in good yields, where an intriguing reversal of the stereoselectivity was observed among titanium tetrahalides