Strong Counteranion Effects on the Catalytic Activity of Cationic Silicon Lewis Acids in Mukaiyama Aldol and Diels−Alder Reactions
摘要:
[GRAPHICS]A toluene-coordinated silyl borate, [Et3Si(toluene)]B(C6F5)(4), demonstrated catalytic activities significantly higher than those of Me3SiOTf and Me3SiNTf2 in Mukaiyama aldol and Diels-Alder reactions.
Strong Counteranion Effects on the Catalytic Activity of Cationic Silicon Lewis Acids in Mukaiyama Aldol and Diels−Alder Reactions
作者:Kenji Hara、Ryuto Akiyama、Masaya Sawamura
DOI:10.1021/ol052206g
日期:2005.12.1
[GRAPHICS]A toluene-coordinated silyl borate, [Et3Si(toluene)]B(C6F5)(4), demonstrated catalytic activities significantly higher than those of Me3SiOTf and Me3SiNTf2 in Mukaiyama aldol and Diels-Alder reactions.