Practical preparation and metallo-ene reactions of (2-alkenylallyl)-magnesium chlorides: Comparative study of magnesium activation
作者:Wolfgang Oppolzer、Philippe Schneider
DOI:10.1016/s0040-4039(01)81370-8
日期:1984.1
Magnesium activated by equilibration with its anthracene adduct in THF metalates smoothly 2-alkenyl chlorides at −65°C without significant coupling. The resulting solutions of Grignard reagents are subjected to thermal (80–130°C) cyclization followed by trapping with electrophiles.