Metal-Catalyzed Acyl Transfer Reactions of Enol Esters: Role of Y 5 (O i Pr) 13 O and (thd) 2 Y(O i Pr) as Transesterification Catalysts
2000; American Chemical Society; Volume: 2; Issue: 7 Linguagem: Inglês
10.1021/ol0057131
ISSN1523-7060
AutoresMei‐Huey Lin, T. V. RajanBabu,
Tópico(s)Chemical Synthesis and Analysis
ResumoPrimary and secondary alcohols react with vinyl or isopropenyl acetate at room temperature in the presence of catalytic amounts (0.05-1 mol %) of Y5(OiPr)13O to give the corresponding esters. In selected cases, the yttrium catalyst promotes the selective O-acylation of amino alcohols without the formation of the amide. Enol esters also react with alpha-amino acid esters in the absence of a catalyst, at room temperature, to give the corresponding amides.
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