Stereoselective sulfoxide directed reduction of 1,2-diketo-derivatives to enantiomerically pure syn and anti 1,2-diols. Correction of the relative configuration by X-ray and chemical correlation to goniobutenolides A and B

Article abstract of DOI:10.1016/S0040-4039(98)80052-X

In our recent report on the enantioselective synthesis of syn and anti 1,2-diols from oxalyl-di-(N-methyl-N-methoxyamide), an unfortunate sample inversion for ¹³C NMR analysis led us to an incorrect attribution of their relative configurations. We report now the correction of the configurations of these diols by X-ray analysis and chemical correlation to two known natural products, goniobutenolides A and B.