期刊
HETEROCYCLES
卷 97, 期 1, 页码 604-611出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.3987/COM-18-S(T)45
关键词
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Enzymatic kinetic resolution of racemic esters of 2,2-disubstituted 5-hydroxychromenes was examined. Transesterification of acetate using Amano Lipase PS in the presence of t-BuOH was most effective to give the corresponding optically active acetate in 18% yield and 95% ee. The absolute configuration of the acetate was determined as R based on the conversion to teretifolione B with natural absolute configuration.
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