TBHP / R 4 N + X –偶氮二羧酸二烷基酯与甲基芳烃,醛,芳基甲醇和芳基甲基氯化物的加氢芳基化
摘要:
高效TBHP / R 4 Ñ + X -二烷基偶氮-1,2-二羧酸酯用甲基芳烃,醛,芳基甲醇和芳基甲基氯化物促进hydroaroylations进行说明。这些氧化/氧化和加氢芳基化过程是通过叔丁基氢过氧化物作为末端氧化剂/氧气源进行的,并被四丁基溴化铵和三辛基甲基氯化铵作为驱动力来催化。在这项研究过程中,发现所有这些加氢芳基化源都是高效试剂,不需要任何过渡金属。
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.
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.
2-dicarboxylates with methyl arenes, aldehydes, aryl methanols and arylmethyl chlorides are described. These oxidation/oxygenation and hydroaroylation processes were carried out by tert-butyl hydroperoxide as terminal oxidant/oxygen source, and were catalyzed by tetrabutylammonium bromide and tricaprylmethylammonium chloride as the driving force. During this investigation, all these hydroaroylating sources
高效TBHP / R 4 Ñ + X -二烷基偶氮-1,2-二羧酸酯用甲基芳烃,醛,芳基甲醇和芳基甲基氯化物促进hydroaroylations进行说明。这些氧化/氧化和加氢芳基化过程是通过叔丁基氢过氧化物作为末端氧化剂/氧气源进行的,并被四丁基溴化铵和三辛基甲基氯化铵作为驱动力来催化。在这项研究过程中,发现所有这些加氢芳基化源都是高效试剂,不需要任何过渡金属。