Oxidative functionalisation of alcohols and aldehydes via the merger of oxoammonium cations and photoredox catalysis
作者:Jyoti Nandi、John M. Ovian、Christopher B. Kelly、Nicholas E. Leadbeater
DOI:10.1039/c7ob02243c
日期:——
new paradigm for nitroxyl-mediated processes via the merger of oxoammonium cation-mediated oxidation with visible-light photoredox catalysis. The integration of these two forms of catalysis has been realised for the oxidative amidation of aldehydes, furnishing N-acylated heterocycles. Extension of this process to the oxidative amidation of alcohols via the intermediacy of an aldehyde was successfully
DMAPO/Boc
<sub>2</sub>
O‐Mediated One‐Pot Direct
<i>N</i>
‐Acylation of Less Nucleophilic
<i>N</i>
‐Heterocycles with Carboxylic Acids
作者:Atsushi Umehara、Soma Shimizu、Makoto Sasaki
DOI:10.1002/cctc.202201596
日期:2023.3.8
Nitrogen Nucleophiles: A general method for direct N-acylation of less nucleophilic nitrogen heterocycles with carboxylic acids is reported. The method, which uses simple, commercially available reagents, no metals and user-friendly conditions, shows excellent functional group tolerance and broad substrate scope for both nitrogen nucleophiles and carboxylic acids.
Holzer, Wolfgang; Poecher, Ingrid, Journal of Heterocyclic Chemistry, 1995, vol. 32, # 1, p. 189 - 194
作者:Holzer, Wolfgang、Poecher, Ingrid
DOI:——
日期:——
Accessing <i>N</i>-Acyl Azoles via Oxoammonium Salt-Mediated Oxidative Amidation
作者:John M. Ovian、Christopher B. Kelly、Vincent A. Pistritto、Nicholas E. Leadbeater
DOI:10.1021/acs.orglett.7b00060
日期:2017.3.17
An operationally simple, robust, metal-free approach to the synthesis of N-acyl azoles from both alcohols and aldehydes is described. Oxidative amidation is facilitated by a commercially available organic oxidant (4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate) and proceeds under very mild conditions for an array of structurally diverse substrates. Tandem reactions of these