A facile regio- and stereocontrolled synthesis of (Z)-1-en-3-yn-2-ylstannanes via alkynyliodonium tosylates coupling with gem-stannyl zirconocene alkenes
Abstract
Acetylenic stannanes react with Cp2Zr(H)Cl (Cp = η5-C5H5) giving organozirconium(IV) complexes, which are trapped with alkynyliodonium tosylates in the presence of Pd(PPh3)4 to afford (Z)-1-en-3-yn-2-ylstannanes.