In 2019,Organic & Biomolecular Chemistry included an article by Phakdeeyothin, Kunita; Yotphan, Sirilata. Quality Control of 1,2-Diphenyldisulfane. The article was titled 《Metal-free regioselective direct thiolation of 2-pyridones》. The information in the text is summarized as follows:
A highly regioselective metal-free direct C-H thiolation of 2-pyridones with disulfides or thiols were developed. A combination of persulfate and a com. available halide source such as LiCl, NCS or I2 enabled the successful direct incorporation of a sulfide moiety into the 5-position of pyridone under mild conditions, providing a useful and convenient approach for the preparation of a diverse array of 5-thio-substituted pyridones in moderate to excellent yields. In the experimental materials used by the author, we found 1,2-Diphenyldisulfane(cas: 882-33-7Quality Control of 1,2-Diphenyldisulfane)
1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Quality Control of 1,2-Diphenyldisulfane
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem