Song, Qiuling’s team published research in Organic Letters in 2014 | CAS: 79694-16-9

2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. Category: ethers-buliding-blocks They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however.

Song, Qiuling; Feng, Qiang; Yang, Kai published an article on January 17 ,2014. The article was titled 《Synthesis of primary amides via copper-catalyzed aerobic decarboxylative ammoxidation of phenylacetic acids and α-hydroxyphenylacetic acids with ammonia in water》, and you may find the article in Organic Letters.Category: ethers-buliding-blocks The information in the text is summarized as follows:

A Cu2O-catalyzed aerobic oxidative decarboxylative ammoxidation to primary benzamides from phenylacetic acids and α-hydroxyphenylacetic acids is developed. A variety of primary benzamides could be prepared smoothly, in good to excellent yields, by means of a one-pot domino protocol combining decarboxylation, dioxygen activation, oxidative C-H bond functionalization, and amidation reactions. After reading the article, we found that the author used 2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9Category: ethers-buliding-blocks)

2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. Category: ethers-buliding-blocks They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem