Photoredox Catalysis: 1,4-Conjugate Addition of <i>N</i>-Methyl Radicals to Electron-Deficient Olefins via Decarboxylation of <i>N</i>-Substituted Acetic Acids
In this report, we describe a new photoredox catalyzed 1,4-conjugate addition of N-substituted aceticacids to electron-deficient olefins via decarboxylative C-C bond formation. This C-C bond formation occurred under mild conditions enabled by visible light irradiation. This transformation facilitated the synthesis of biologically relevant N-substituted heterocyclic structural motifs not readily accessible
在本报告中,我们描述了一种新的光氧化还原催化 1,4-共轭加成 N-取代的乙酸通过脱羧 CC 键形成缺电子烯烃。这种CC键形成发生在可见光照射的温和条件下。这种转化促进了其他方法不易获得的生物学相关的 N 取代杂环结构基序的合成。CC键形成方案应用于弱亲核杂环,如吲哚、吲唑、咪唑和环状酰胺,以形成功能化的药物样小分子。
The total synthesis of <b>(<scp>−</scp>)</b>-strempeliopine <i>via</i> palladium-catalyzed decarboxylative asymmetric allylic alkylation
In the work reported herein, the concise and enantioselective total synthesis of the Schizozygine alkaloid (−)-strempeliopine was developed. This synthetic strategy featured the palladium-catalyzed decarboxylative asymmetric allylic alkylation of N-benzoyl lactam to set up the absolute configuration at the C20 position, a highly diastereoselective one-pot Bischler–Napieralski/lactamization and iminium
[EN] DECARBOXYLATIVE CONJUGATE ADDITIONS AND APPLICATIONS THEREOF<br/>[FR] ADDITIONS DE CONJUGUÉS AVEC DÉCARBOXYLATION ET APPLICATIONS ASSOCIÉES
申请人:UNIV PRINCETON
公开号:WO2016196931A1
公开(公告)日:2016-12-08
Synthetic methods are described herein operable to efficiently produce a wide variety of molecular species through conjugate additions via decarboxylative mechanisms. For example, methods of functionalization of peptide residues are described, including selective functionalization of peptide C-terminal residues. In one aspect, a method of peptide functionalization comprises providing a reaction mixture including a Michael acceptor and a peptide and coupling the Michael acceptor with the peptide via a mechanism including decarboxylation of a peptide reside.
Decarboxylative conjugate additions and applications thereof
申请人:The Trustees of Princeton University
公开号:US11136349B2
公开(公告)日:2021-10-05
Synthetic methods are described herein operable to efficiently produce a wide variety of molecular species through conjugate additions via decarboxylative mechanisms. For example, methods of functionalization of peptide residues are described, including selective functionalization of peptide C-terminal residues. In one aspect, a method of peptide functionalization comprises providing a reaction mixture including a Michael acceptor and a peptide and coupling the Michael acceptor with the peptide via a mechanism including decarboxylation of a peptide reside.
本文介绍的合成方法可通过脱羧机制进行共轭添加,从而有效地生产多种分子物质。例如,描述了肽残基官能化的方法,包括肽 C 端残基的选择性官能化。在一个方面,肽官能化的方法包括提供包括迈克尔受体和肽的反应混合物,并通过包括肽残基脱羧的机制将迈克尔受体与肽偶联。
DECARBOXYLATIVE CONJUGATE ADDITIONS AND APPLICATIONS THEREOF
申请人:The Trustees of Princeton University
公开号:US20180179248A1
公开(公告)日:2018-06-28
Synthetic methods are described herein operable to efficiently produce a wide variety of molecular species through conjugate additions via decarboxylative mechanisms. For example, methods of functionalization of peptide residues are described, including selective functionalization of peptide C-terminal residues. In one aspect, a method of peptide functionalization comprises providing a reaction mixture including a Michael acceptor and a peptide and coupling the Michael acceptor with the peptide via a mechanism including decarboxylation of a peptide reside.