Synthesis and biological activity of 1,3,4-thiadiazole compounds containing ferrocenyl moiety was written by Gou, Xiao-feng;Li, Yuan;Chen, Bang;Gao, Xue-xiang. And the article was included in Huaxue Shiji in 2013.SDS of cas: 1877-75-4 This article mentions the following:
A series of novel N-(ferrocenyl-methyl)-5-alkyl/aryl-1, 3, 4-thiadiazol-2-amines were synthesized by the condensation of ferrocenecarboxaldehyde with 2-amino-5-alkyl/aryl-1, 3, 4-thiadiazoles in presence of silica gel and then reduction by potassium borohydride. All products were characterized by IR, 1HNMR, and ESI/MS. Further, all synthesized compounds were screened for their auxin activity. Most of the compounds showed potent activity. In the experiment, the researchers used many compounds, for example, 2-(4-Methoxyphenoxy)acetic acid (cas: 1877-75-4SDS of cas: 1877-75-4).
2-(4-Methoxyphenoxy)acetic acid (cas: 1877-75-4) 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. 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.SDS of cas: 1877-75-4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem