Bis(methoxycarbonyl)carbene Insertion into N-H Bonds: A Facile Route to<i>N</i>-Substituted Aminomalonic Esters
作者:Suren Husinec、Ivan Juranic、Antonia Llobera、Alexander E. A. Porter
DOI:10.1055/s-1988-27687
日期:——
Bis(methoxycarbonyl)carbene, generated by the copper(II)-catalyzed fragmentation of 2,5-dichlorothiophenium-1-bis(methoxycarbonyl) methylide (3) undergoes rapid and efficient insertion into the N-H bonds of primary and secondary amines to generate N-substituted aminomalonic esters in good to excellent yields.
General Ir-Catalyzed N–H Insertions of Diazomalonates into Aliphatic and Aromatic Amines
作者:Zhuang Zhong、Céline Besnard、Jérôme Lacour
DOI:10.1021/acs.orglett.3c03929
日期:2024.2.9
reactivity of acceptor–acceptor diazo malonate reagents is reported using [Ir(cod)Cl]2 as catalyst. A large range of amines, primary and secondary, aliphatic and aromatic, is possible. Mild temperatures, perfect substrate/reactant stoichiometry, and good functional group compatibility render the process particularly attractive for the (late-stage) functionalization of amines.