N2,N2′‐disubstituted Oxalic acid (cas 144-62-7) bishydrazides: novel ligands for copper‐catalyzed CN coupling reactions in water
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Add time:09/29/2019 Source:infona.pl
A series of N2,N2′‐disubstituted Oxalic acid (cas 144-62-7) bishydrazides were synthesized. Some, for example, N2,N2′‐di‐1‐(4‐methoxyphenyl)‐ethanyloxylic‐(bishydrazide), are novel and effective ligands for copper‐catalyzed Ullmann‐type CN coupling reaction in water. A variety of amines could be effectively N‐arylated with aryl halides under both microwave irradiation and conventional heating (even at 30 °C) with good to excellent yields. Copyright © 2011 John Wiley & Sons, Ltd.
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