Ruthenium Catalyzed Decarbonylative Arylation at sp<sup>3</sup> Carbon Centers in Pyrrolidine and Piperidine Heterocycles
作者:Denis V. Gribkov、Stefan J. Pastine、Michael Schnürch、Dalibor Sames
DOI:10.1021/ja072577n
日期:2007.9.1
ruthenium-catalyzed decarbonylative arylation of cyclic 2-amino esters, which replaces the ester group with an aryl ring at the sp3 carbon center. For example, proline ester amidine 1 is converted to 2-arylpyrrolidine 3 in the presence of arylboronic acids or esters as arene donors and Ru(3)(CO)(12) as the catalyst. This process provides a rapid access to a variety of 2-arylpyrrolidines and piperidines from
Alkylation of α-<i>tert</i>-butoxycarbonylamino ketone enolate anions. A useful synthesis of α-alkyl-α-amino ketones, 2-acylpyrrolidines, and 2-acylpiperidines
作者:Angel Guzman、Clara Quintero、Joseph M. Muchowski
DOI:10.1139/v91-298
日期:1991.12.1
A versatilesynthesis of α-alkyl-α-amino ketones 5 and cyclic α-amino ketones 7 based on the selective mono-α-alkylation and C(α), N-cycloalkylation of α-tert-butoxycarbonylamino ketones 2 and subs...