Stereoselective Synthesis of Functionalized Pyrrolidines by the Diverted N−H Insertion Reaction of Metallocarbenes with β-Aminoketone Derivatives
作者:Simon M. Nicolle、William Lewis、Christopher J. Hayes、Christopher J. Moody
DOI:10.1002/anie.201511433
日期:2016.3.7
metal‐catalyzed diverted N−H insertion of a range of diazocarbonyl compounds with β‐aminoketone derivatives is described. A number of catalysts (rhodium(II) carboxylate dimers, copper(I) triflate, and an iron(III) porphyrin) are shown to promote the process under mild conditions to give a wide range of highly substituted proline derivatives. The reaction starts as a metallocarbene N−H insertion but is
The use of indium trichloride as catalyst in a one-pot Mannich reaction in water gives high yields for the formation of beta-aminoketones/esters/acids is described. The catalyst can be recycled when the reaction is complete (Loh T.-P.; Wei L.-L. Tetrahedron Lett. 1998, 39, 323). (C) 2000 Elsevier Science Ltd. All rights reserved.