Acyl hydrazides as acyl donors for the synthesis of diaryl and aryl alkyl ketones
作者:Ahmed R. Akhbar、Vijay Chudasama、Richard J. Fitzmaurice、Lyn Powell、Stephen Caddick
DOI:10.1039/c3cc47967f
日期:——
In this communication we describe a novel strategy for the formation of valuable diaryl and arylalkylketones from acyl hydrazides. A wide variety of ketones are prepared and the mild reaction conditions allow for the use of a range of functionalities, especially in the synthesis of diaryl ketones.
A facile, one-pot procedure for the conversion of aromatic aldehydes to esters, as well as thioesters and amides, via acyl hydrazide intermediates
作者:Antoine Maruani、Maximillian T. W. Lee、George Watkins、Ahmed R. Akhbar、Henry Baggs、André Shamsabadi、Daniel A. Richards、Vijay Chudasama
DOI:10.1039/c5ra26842g
日期:——
Herein we present an efficient method for the synthesis of esters from aromatic aldehydes via readily accessible acyl hydrazides. The developed reaction protocol is shown to be tolerant of a range of aromatic aldehydes, bearing various functionalities, as well as being amenable to the synthesis of thioesters and amides.
Zinc Acetate as a Catalyst for the Hydroacylation Reaction of Azodicarboxylates with Aldehydes
作者:Yuancheng Qin、Dan Zhou、Mingjun Li
DOI:10.2174/157017812800233741
日期:2012.4.24
Zn(OAc)2·2H2O is found to be an effective catalyst for the hydroacylation reaction of azodicarboxylates with aldehydes. A wide range of aldehydes, including aliphatic, aromatic and heterocyclic compounds, was considered. Most of the hydroacylation reactions afforded the hydroacylation products in good to excellent yields. The overall system is simple, economical and has practical advantages for construction of carbon-nitrogen bonds.
The hydroacylationreaction of aldehydes with azodicarboxylates catalyzed by copper(II) acetate monohydrate has been reported. The reaction of various aldehydes gave the corresponding hydroacylation products in 60–98% yields under mild conditions. The method is simple, economical, and has practical advantages for the construction of the carbon–nitrogen bonds.
CuO Nanoparticles Supported on Silica: A Simple, Efficient, and Recyclable Catalyst for Hydroacylation Reactions of Aldehydes with Azodicarboxylate
作者:Suleman M. Inamdar、Vinod K. More、Sisir K. Mandal
DOI:10.1246/cl.2012.1484
日期:2012.11.5
We describe a green and efficient procedure for the hydroacylation of aldehydes with diisopropyl azodicarboxylate, using CuO nanoparticles supported on silica (CuO-np/SiO2) as a catalyst, in good to excellent yields. A wide range of aldehydes, including aromatic and aliphatic compounds, were considered. The catalyst is found to be truly heterogeneous in the reaction mixture and can be reused without loss of catalytic activity.