Rearrangement of <i>N</i>-<i>tert</i>-Butanesulfinyl α-Halo Imines with Alkoxides to <i>N</i>-<i>tert</i>-Butanesulfinyl 2-Amino Acetals as Precursors of <i>N</i>-Protected and <i>N</i>-Unprotected α-Amino Carbonyl Compounds
作者:Filip Colpaert、Sven Mangelinckx、Bram Denolf、Norbert De Kimpe
DOI:10.1021/jo300752c
日期:2012.7.20
imines with alkoxides afforded new N-tert-butanesulfinyl 2-amino acetals in good to excellent yield. These N-tert-butanesulfinyl 2-amino acetals are convenient precursors for the TMSOTf-promoted synthesis of the corresponding N-protected α-amino aldehydes and ketones, as well as for the HCl-promoted synthesis of 2-amino acetal hydrochlorides and α-aminoketone and α-amino aldehyde hydrochlorides in high