Polymer-supported dichlorophosphate. A recoverable new reagent for synthesis of 2-amino-1,3,4-thiadiazoles was written by Li, Zheng;Yu, Jin-Lan;Yang, Jing-Ya;Shi, Sheng-Yi;Wang, Xi-Cun. And the article was included in Journal of Chemical Research in 2005.Formula: C9H10O4 This article mentions the following:
Poly(ethylene glycol) (PEG)-supported dichlorophosphate was efficiently used as a recoverable new dehydration reagent for rapid synthesis of 2-amino-5-substituted-1,3,4-thiadiazoles under microwave irradiation and solvent-free condition by reactions of thiosemicarbazide with aliphatic acids, benzoic acid, aryloxy-acetic acids or furan-2-carboxylic acids. In the experiment, the researchers used many compounds, for example, 2-(4-Methoxyphenoxy)acetic acid (cas: 1877-75-4Formula: C9H10O4).
2-(4-Methoxyphenoxy)acetic acid (cas: 1877-75-4) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Formula: C9H10O4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem