Syntheses of rac- and optically active 2-alkyl-γ-butyrolactones and 2 -alkyl-cyclobutanones
摘要：
γ-Butyrolactones have been produced in good yield from alkylidene cyclopropanes, as racemates or as an enantiomerically enriched mixture of stereoisomers (e.e.>60%) depending upon the method used. Optically active cyclobutanones which are intermediate in the process have been in some cases isolated. We show the limitations of a competitive method previously described and point out its weak step.
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DOI：
10.1016/S0040-4020(98)00371-8
被引量：
年份：
1998
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