J. Barluenga et al., TIN-SUBSTITUTED AND GERMANIUM-SUBSTITUTED ENOL ETHERS FROM FISCHER CARBENE COMPLEXES AND GROUP-14 VINYL DERIVATIVES, Organometallics, 16(21), 1997, pp. 4525-4526
Trialkyltin- or trialkylgermanium-substituted enol ethers 5 and 2-alko
xy-1,3-butadienes 7 have been prepared by the reaction of Fischer carb
ene complexes 1-3 and 6 with vinylstannanes and -germanes 4. The openi
ng of the metallacyclobutane intermediate by metalloid migration has b
een shown by using a 2,2-dideuteriated olefin.