The author of 《Transition Metal-Free Oxidative Coupling of Primary Amines in Polyethylene Glycol at Room Temperature: Synthesis of Imines, Azobenzenes, Benzothiazoles, and Disulfides》 were Hudwekar, Abhinandan D.; Verma, Praveen K.; Kour, Jaspreet; Balgotra, Shilpi; Sawant, Sanghapal D.. And the article was published in European Journal of Organic Chemistry in 2019. Recommanded Product: 882-33-7 The author mentioned the following in the article:
A transition metal-free protocol has been developed for the oxidative coupling of primary amines to imines and azobenzenes, thiols to disulfides, and 2-aminothiophenols to benzothiazoles, offering excellent yields. The advantageous features of the present environmentally benign methodol. include the usage of biocompatible and green reaction conditions such as, solvent, room temperature reactions and transition metal-free approach. Moreover, it offers a broader substrate scope. In the part of experimental materials, we found many familiar compounds, such as 1,2-Diphenyldisulfane(cas: 882-33-7Recommanded Product: 882-33-7)
1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however. Recommanded Product: 882-33-7
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem