posted on 1997-10-14, 00:00authored byJosé Barluenga, Rosario González, Francisco J. Fañanás
Trialkyltin- or trialkylgermanium-substituted enol ethers 5 and 2-alkoxy-1,3-butadienes
7 have been
prepared by the reaction of Fischer carbene
complexes
1−3 and 6 with vinylstannanes
and -germanes 4. The
opening of the metallacyclobutane intermediate by metalloid migration has been shown by using a 2,2-dideuteriated olefin.