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- W2951457570 abstract "The direct alkylation of silyl enol ethers with para-methoxybenzylic alcohols or their corresponding acetates was efficiently catalyzed by Bi(OTf)3 in CH3NO2 as the solvent. The reaction provided the α-benzylated carbonyl compounds in high yields after short reaction times using 1–2.5 mol % of the catalyst. Benzylic acetates other than para-methoxybenzylic acetates also underwent the reaction. High facial diastereoselectivities were observed with acetates derived from chiral α-branched para-methoxybenzylic alcohols. In addition, a catalytic reduction with Et3SiH as the reducing agent is reported." @default.
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- W2951457570 date "2008-02-01" @default.
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- W2951457570 title "Chemo- and diastereoselective Bi(OTf)3-catalyzed benzylation of silyl nucleophiles" @default.
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- W2951457570 doi "https://doi.org/10.1016/j.tetlet.2007.12.092" @default.
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