[EN] A CATALYST BOUND ALPHA RADICAL AND SYNTHESIS OF OXO COMPOUNDS USING THE SAME<br/>[FR] RADICAL ALPHA LIÉ À UN CATALYSEUR ET SYNTHÈSE DE COMPOSÉS OXO L'UTILISANT
申请人:COUNCIL SCIENT IND RES
公开号:WO2018163217A2
公开(公告)日:2018-09-13
An organocatalyst bound α-aminoalkyl radical intermediate for controlled aerobic oxidation of iminium ions
作者:Abdul Motaleb、Asish Bera、Pradip Maity
DOI:10.1039/c8ob01032c
日期:——
A catalyst bound α-aminoalkyl radicalintermediate from iminium is developed to control its formation and reactivity with aerobic oxygen. The influence of the catalyst was demonstrated via the ease of radicalintermediate formation and its subsequent reactivity, including the first catalyst-controlled enantioselective aerobic oxidation with a chiral phosphite catalyst.
give derivatives 6 has been studied. Particularly good selectivities (82−84%) were observed when R is a benzylic group. On the basis of these results, a practical and enantioselective synthesis of the natural alkaloid (−)-argemonine is presented.