The Coupling of Arylboronic Acids with Nitroarenes Catalyzed by Rhodium was written by Zheng, Xing-Wang;Ding, Jin-Chang;Chen, Jiu-Xi;Gao, Wen-Xiao;Liu, Miao-Chang;Wu, Hua-Yue. And the article was included in Organic Letters in 2011.SDS of cas: 54916-28-8 This article mentions the following:
The coupling of arylboronic acids with electron-deficient nitroarenes was realized for the first time by using a rhodium(I) catalyst under an air atm., achieving unsym. diaryl ethers, e.g., I with yields ranging from poor to good. From a deuterium labeling experiment, the oxygen atom is derived from ambient water. The efficiency of this reaction was demonstrated by its compatibility with fluoro, bromo, chloro, and trifluoromethyl groups. In the experiment, the researchers used many compounds, for example, 1-(4-(4-Methoxyphenoxy)phenyl)ethanone (cas: 54916-28-8SDS of cas: 54916-28-8).
1-(4-(4-Methoxyphenoxy)phenyl)ethanone (cas: 54916-28-8) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.SDS of cas: 54916-28-8
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem