ChemInform Abstract: Dithiooxamide as an Effective Sulfur Surrogate for Odorless High‐Yielding Carbon—Sulfur Bond Formation in Wet PEG200 as an Eco‐Friendly, Safe, and Recoverable Solvent.

Metal-free photo-induced sulfidation of aryl iodide and other chalcogenation

“…However, several troublesome drawbacks still exist, including expensive catalysts and ligands, high temperature and narrow substrate scope. In addition, the metal catalystpoisoning enabled by thiols further limited the applicability of these reactions, so several alternatives to thiols had been explored (Clark et al, 1989;Akkilagunta and Kakulapati, 2011;Ke et al, 2011;Park et al, 2011;Prasad and Sekar, 2011;Reddy et al, 2011;Singh et al, 2013;Zhao et al, 2013;Firouzabadi et al, 2015;Tber et al, 2016;Ge et al, 2019;Liu et al, 2020). Although the use of thiol substitutes can eliminate the difficulties caused by thiols, these methods also have certain disadvantage, such as the tedious procedures for the synthesis of S-Alkylisothiouronium salt (Zhao et al, 2007), 1,3-propanedithiol equivalent (Liu et al, 2003) and 2-[bis (alkylthio) methylene]-3-oxo-N-otolylbutanamides (Dong et al, 2006).…”