The present invention relates to methods of synthesising aziridines including isotopically labelled aziridines, said methods comprising contacting an imine or one or more precursors thereof with a diazo compound in the presence of a phosphoramide or a phosphoramide-derived catalyst. The present invention also relates to aziridines, modified aziridines and aziridine-derived compounds preparable by the aforementioned methods, and to phosphoramide or phosphoramide-derived catalysts suitable for use in such methods.
[EN] METHOD AND CATALYST FOR SYNTHESISING AZIRIDINE<br/>[FR] PROCÉDÉ ET CATALYSEUR POUR LA SYNTHÈSE D'AZIRIDINE
申请人:UNIV EAST ANGLIA
公开号:WO2013179052A1
公开(公告)日:2013-12-05
The present invention relates to methods of synthesising aziridines including isotopically labelled aziridines, said methods comprising contacting an imine or one or more precursors thereof with a diazo compound in the presence of a phosphoramide or a phosphoramide-derived catalyst. The present invention also relates to aziridines, modified aziridines and aziridine-derived compounds preparable by the aforementioned methods, and to phosphoramide or phosphoramide-derived catalysts suitable for use in such methods.
The present invention relates to methods of synthesizing aziridines including isotopically labelled aziridines, said methods comprising contacting an imine or one or more precursors thereof with a diazo compound in the presence of a phosphoramide or a phosphoramide-derived catalyst. The present invention also relates to aziridines, modified aziridines and aziridine-derived compounds preparable by the aforementioned methods, and to phosphoramide or phosphoramide-derived catalysts suitable for use in such methods.
作者:Sean P. Bew、John Liddle、David L. Hughes、Paolo Pesce、Sean M. Thurston
DOI:10.1002/anie.201611990
日期:2017.5.2
We report a multi-component asymmetric Brønsted acid-catalyzed aza-Darzens reaction which is not limited to specific aromatic or heterocyclic aldehydes. Incorporating alkyl diazoacetates and, important for high ee's, ortho-tert-butoxyaniline our optimized reaction (i.e. solvent, temperature and catalyst study) affords excellent yields (61-98 %) and mostly >90 % optically active cis-aziridines. (+)-Chloramphenicol