Redox‐Neutral α,β‐Difunctionalization of Cyclic Amines
作者:Weijie Chen、YoungKu Kang、Richard G. Wilde、Daniel Seidel
DOI:10.1002/anie.201311165
日期:2014.5.12
the efficient α‐functionalization of amines, few strategies exist that enable the direct functionalization of amines in the β‐position. A general redox‐neutral strategy is outlined for amineβ‐functionalization and α,β‐difunctionalization that utilizes enamines generated in situ. This concept is demonstrated in the context of preparing polycyclic N,O‐acetals from simple 1‐(aminomethyl)‐β‐naphthols and
Copper-catalyzed aerobic decarboxylative coupling between cyclic α-amino acids and diverse C–H nucleophiles with low catalyst loading
作者:Jing Guo、Ying Xie、Qiao-Lei Wu、Wen-Tian Zeng、Albert S. C. Chan、Jiang Weng、Gui Lu
DOI:10.1039/c8ra02340a
日期:——
An aerobic decarboxylative cross-coupling of α-aminoacids with diverse C–H nucleophiles has been realized using Cu2(OH)2CO3 (1 mol%) as the catalyst under air. This protocol enables highly efficient formation of various C(sp3)–C(sp3), C(sp3)–C(sp2) and C(sp3)–C(sp) bonds under simple conditions without the use of any ligand or extra oxidant, providing a practical approach to numerous nitrogen-containing
Nontraditional Reactions of Azomethine Ylides: Decarboxylative Three-Component Couplings of α-Amino Acids
作者:Chen Zhang、Daniel Seidel
DOI:10.1021/ja910719x
日期:2010.2.17
New reactions of azomethine ylides with nontraditional dipolarophiles are reported. Azomethine ylides, formed in situ via decarboxylative condensations of alpha-amino acids with aldehydes, undergo reactions with naphthols, indoles, alkynes, and nitroalkanes.
A Novel Iron-Catalyzed Decarboxylative Csp<sup>3</sup>−Csp<sup>2</sup> Coupling of Proline Derivatives and Naphthol
作者:Hai-Peng Bi、Wen-Wen Chen、Yong-Min Liang、Chao-Jun Li
DOI:10.1021/ol901129v
日期:2009.8.6
A novel iron-catalyzed intermolecular decarboxylative Csp(3)-Csp(2) coupling reaction using proline derivatives as starting materials is developed. In this process, a series of potentially useful ligands (tertiary aminonaphthol) for catalysis was obtained.