Organic Dye-Photocatalyzed Acylnitroso Ene Reaction
作者:Yew Chin Teo、Yuanhang Pan、Choon Hong Tan
DOI:10.1002/cctc.201200435
日期:2013.1
operationally simple and uses air as the terminal oxidant. Reactions of acylnitroso with a range of functionalized alkenes give intermolecular acylnitroso ene products in moderate to good yields. This is an environmentally friendly allylicamination methodology that avoids the use of metal catalysts and stoichiometric amount of oxidants. A plausible reaction mechanism is proposed on the basis of singlet oxygen
Peroxidase-induced C–N bond formation <i>via</i> nitroso ene and Diels–Alder reactions
作者:Christina Jäger、Bernhard J. Gregori、Juhana A. S. Aho、Marleen Hallamaa、Jan Deska
DOI:10.1039/d2gc04827b
日期:——
synthetic organic chemistry. Here, nitrosocompounds offer a highly interesting reactivity that complements traditional amination strategies, allowing for the introduction of nitrogen functionalities via ene-type reactions or Diels–Alder cycloadditions. In this study, we highlight the potential of horseradish peroxidase as biological mediator for the generation of reactive nitroso species under environmentally
Copper-Catalyzed Aerobic Oxidation of Hydroxamic Acids Leads to a Mild and Versatile Acylnitroso Ene Reaction
作者:Charles P. Frazier、Jarred R. Engelking、Javier Read de Alaniz
DOI:10.1021/ja204603u
日期:2011.7.13
A mild formation of transient acylnitroso intermediates using a copper chloride catalyst and 1 atm of air as the terminal oxidant is described. The mild reaction conditions enable the inter- and intramolecular acylnitroso ene reaction with a wide range of functionalized alkene partners, as well as the first asymmetric variant. Notably, this transformation provides a practical and operationally simple method for effecting allylic amidation using an environmentally benign oxidant and a readily abundant transition metal.
Accessing nitrosocarbonyl compounds with temporal and spatial control via the photoredox oxidation of N-substituted hydroxylamines
作者:Charles P. Frazier、Leoni I. Palmer、Andrey V. Samoshin、Javier Read de Alaniz
DOI:10.1016/j.tetlet.2015.01.024
日期:2015.6
Photoredox catalysis is employed to generate highly reactive acylnitroso species from hydroxamic acid derivatives. The conditions are shown to be comparable to a previously developed transition metal aerobic oxidation and are amenable to a range of transformations including Diels-Alder and ene reactions. This unique application of such an approach gives access to temporal and spatial control in nitroso chemistry. Published by Elsevier Ltd.
Hetero Diels-Alder Reaction and Ene Reaction of Acylnitroso Species in situ Generated by Hypoiodite Catalysis
作者:Saki Uraoka、Ikumi Shinohara、Hisato Shimizu、Keiichi Noguchi、Akira Yoshimura、Viktor V. Zhdankin、Akio Saito
DOI:10.1002/ejoc.201801340
日期:2018.12.6
Firstexample of hypoiodite‐catalyzed oxidation for the in situ generation of acylnitroso species, which can be used in hetero Diels–Alder reactions with dienes and in enereactions with alkenes.