摘要：

The optically active D- and L-2,3-butanediols have been synthesized from the corresponding D- and L-mannitols by a series of unequivocal reactions. The 2,3-isopropylidene derivatives and the di-p-nitrobenzoates of the synthetic butanediols were compared with the same derivatives of the natural, levorotatory butanediol. This proved that the levorotatory butanediol had the D-configuration, the dextrorotatory the L-configuration. The conclusions of previous workers, based on degradative studies, are thus confirmed.

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