FeCl<sub>3</sub>‐Catalyzed Aza‐Diels–Alder Reactions of Methylenecyclopropanes with Imines
作者:Ke Gao、Yizhe Li、Huixia Sun、Renhua Fan、Jie Wu
DOI:10.1080/00397910701577729
日期:2007.11
Abstract FeCl3‐catalyzed aza‐Diels–Alder reaction of methylenecyclopropane with imine provides a facile and efficient route for the synthesis of tetrahydroquinoline with a spirocyclopropyl ring.
Reactions of 4-pyridinecarbomitrile with sodium and aromatic imines provide a convenient and useful method for synthesising a new kind of substituted 4-pyridinemethanamines in good yields.
Atropisomerism of α,β-Unsaturated Amidines: Stereoselective Synthesis by Catalytic Cascade Reaction and Optical Resolution
作者:Naoya Shindoh、Yoshiji Takemoto、Kiyosei Takasu
DOI:10.1002/chem.200901103
日期:2009.7.20
Torquoselective: Enantiomers of axially chiral α,β‐unsaturated amidines were prepared by catalytic cascade reactions consisting of [2+2] cycloaddition and thermal cycloreversion. The cascade reaction proceeds in a stereoselective (torquoselective) manner, confirmed by the intermediate depicted.
Manganese-Catalyzed Synthesis of Imines from Primary Alcohols and (Hetero)Aromatic Amines
作者:Daniel Raydan、Sofia Friães、Beatriz Royo、M. Manuel B. Marques、Nuno Viduedo、A. Sofia Santos、Clara S. B. Gomes
DOI:10.1055/a-1828-1678
日期:2022.8
describe the synthesis of a wide variety of imines through oxidativecoupling of alcohols and aromatic amines catalyzed by Mn complexes bearing N^N triazole ligands. A wide variety of imines in excellent yields (up to 99%) have been prepared. Mn-based catalysts proved to be highly efficient and versatile, allowing for the first time the preparation of several imines containing N-based heterocycles.
在此,我们描述了通过由带有 N^N 三唑配体的 Mn 配合物催化的醇和芳香胺的氧化偶联来合成多种亚胺。已经制备了多种高产率(高达 99%)的亚胺。Mn 基催化剂被证明是高效和通用的,首次允许制备几种含有 N 基杂环的亚胺。
No Transition Metals Required – Oxygen Promoted Synthesis of Imines from Primary Alcohols and Amines under Ambient Conditions
Transition-metal free: The synthesis of imines from benzyl alcohol and anilines promoted by oxygen and KOtBu at room temperature in the absence of a transition metal catalyst is described. The detailed investigation of the radical mechanism is presented revealing complex reaction paths and branching patterns.
无过渡金属:描述了在室温下,在没有过渡金属催化剂的情况下,在氧气和 KO t Bu 的促进下,由苯甲醇和苯胺合成亚胺。对自由基机理的详细研究揭示了复杂的反应路径和分支模式。