Syntheses of three new lithio hexavinylogation reagents

Article abstract of DOI:10.1016/S0040-4020(99)00852-2

Syntheses of new lithio hexavinylogation reagents are described starting either from ω-bromo polyenacetal, ω-bromo polyenol ether or ω-bromo non conjugated aldehyde. The reactivity of the lithio reagents has been tested by condensation with benzaldehyde;