PREPARATION OF LANTHANIDE ALKOXIDES;
LANTHANIDE CHLORIDES;
CATALYSTS;
EPOXIDATION;
MEERWEIN-PONNDORF-VERLEY-OPPENAUER REACTIONS;
D O I:
10.1016/S0040-4039(00)79922-9
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A new route to lanthanide tris(alkoxides) is described. These compounds are easily prepared by reaction of n-BuLi with corresponding adducts LnCl3, (3-4 ROH) that are obtained from hydrated LnCl3. They are efficient as catalysts in epoxidation of allylic alcohols by TBHP and in Meerwein-Ponndrof-Verley-Oppenauer reactions.