Palladium-catalyzed selective aminoamidation and aminocyanation of alkenes using isonitrile as amide and cyanide sources
作者:Huanfeng Jiang、Hanling Gao、Bifu Liu、Wanqing Wu
DOI:10.1039/c4cc07743a
日期:——
An efficient aminoamidation and aminocyanation reaction of alkenes has been developed for the synthesis of substituted indolines, tetrahydroisoquinolines and pyrrolidines.
Copper Catalyzed Enantioselective Intramolecular Aminooxygenation of Alkenes
作者:Peter H. Fuller、Jin-Woo Kim、Sherry R. Chemler
DOI:10.1021/ja806585m
日期:2008.12.31
methyleneoxy-functionalized dihydroindolines and pyrrolidines. Tetramethylaminopyridyl radical (TEMPO) serves as both the source of the oxygen and the stoichiometric oxidant. These reactions are catalyzed by copper(II) triflate, complexed with (4S,5R)-Bis-Phbox. The unprotected aminoalcohols can be obtained by sequential dissolving metal reductions of the N-S and O-N bonds.
本文报道了铜催化的烯烃的对映选择性分子内氨基氧化。这是对映选择性分子内烯烃氨基氧化过程的第一份报告。N-Arylsulfonyl-2-allylanilines 和 4-pentenylarylsulfonamides 以高产率和良好的对映选择性环化,提供新的手性亚甲氧基官能化二氢二氢吲哚和吡咯烷。四甲基氨基吡啶基(TEMPO)既是氧源又是化学计量氧化剂。这些反应由与 (4S,5R)-Bis-Phbox 络合的三氟甲磺酸铜 (II) 催化。未保护的氨基醇可以通过连续溶解 NS 和 ON 键的金属还原来获得。
<i>m</i>-CPBA-Mediated IntramolecularAminohydroxylation of<i>N</i>-Sulfonyl Aminoalkenes to Synthesize β-Hydroxyl Cyclic Amines
作者:Yan Yin、Hong Zhou、Guofeng Sun、Xichen Liu
DOI:10.1002/jhet.2169
日期:2015.9
diverse N‐sulfonyl‐protected aminoalkenes readily reacted with m‐CPBA to produce a series of β‐hydroxyl cyclicamines in high yields through intramolecular aminohydroxylation. This metal‐free and easy‐to‐handle synthetic methodology offered an environmentally friendly alternative to vicinal difunctionalization of alkenes.
Synthesis of Functionalized Indoles via Palladium-Catalyzed Cyclization of N-(2-allylphenyl) Benzamide: A Method for Synthesis of Indomethacin Precursor
We developed an efficient method for synthesis of substituted N-benzoylindole via Pd(II)-catalyzed C–H functionalization of substituted N-(2-allylphenyl)benzamide. The reaction showed a broad substrate scope (including N-acetyl and N-Ts substrates) and substituted indoles were obtained in good to excellent yields. The most distinctive feature of this method lies in the high selectivity for N-benzoylindole
Copper(II) Carboxylate-Promoted Intramolecular Carboamination of Alkenes for the Synthesis of Polycyclic Lactams
作者:Peter H. Fuller、Sherry R. Chemler
DOI:10.1021/ol702401w
日期:2007.12.1
intramolecular carboamination reactions of variously substituted gamma-alkenyl amides have been investigated. These oxidative cyclization reactions efficiently provide polycyclic lactams, useful intermediates in nitrogen heterocycle synthesis, in good to excellent yields. The efficiency of the carboamination process is dependent upon the structure of the amide backbone as well as the nitrogen substituent.
已经研究了羧酸铜 (II) 促进的各种取代 γ-烯基酰胺的分子内碳胺化反应。这些氧化环化反应有效地提供了多环内酰胺,它是氮杂环合成中有用的中间体,产率很高。碳胺化过程的效率取决于酰胺主链的结构以及氮取代基。