LANTHANIDE TRIFLUOROMETHANESULFONATES AS STABLE LEWIS-ACIDS IN AQUEOUS-MEDIA - YB(OTF)3 CATALYZED HYDROXYMETHYLATION REACTION OF SILYL ENOL ETHERS WITH COMMERCIAL FORMALDEHYDE SOLUTION

被引:204
作者
KOBAYASHI, S
机构
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D O I
10.1246/cl.1991.2187
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Silyl enol ethers smoothly react with commercial formaldehyde solution to give the corresponding hydroxymethylated adducts in high yields by the promotion of a catalytic amount of ytterbium(III) triflate (Yb(OTf)3), which is a stable Lewis acid in aqueous media. Other lanthanide triflates are also found to be effective.
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页码:2187 / 2190
页数:4
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