Cyclization of benzyne-tethered alkyllithiums: preparation of 3-substituted benzocyclobutenes and 5-substituted tetralins
作者:William F. Bailey、Sarah C. Longstaff
DOI:10.1016/s0040-4039(99)01434-3
日期:1999.9
A five-step, one-pot preparation of isomerically pure 3-substituted benzocyclobutenes or 5-substituted tetralins in 20–40% yield from the appropriate α-(2-fluorophenyl)-ω-iodoalkane, involving generation and subsequent 4- or 6-exo cyclization of a benzyne-tetheredalkyllithium, is described.