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.
通过在蒽中的蒽加合物平衡平衡活化的镁,可在-65°C的条件下平稳地使2-链烯基氯化物金属化,而不会发生显着偶联。将格氏试剂的所得溶液进行热(80–130°C)环化,然后用亲电试剂捕集。