Pyridine hydrochloride-catalyzed thiolation of alkenes: divergent synthesis of allyl and vinyl sulfides was written by Liu, Shiwen;Wang, Lili;Ma, Zhipeng;Zeng, Xiaojun;Xu, Bo. And the article was included in Organic Chemistry Frontiers in 2020.Quality Control of Pyridinehydrochloride This article mentions the following:
A highly efficient and practical protocol for the synthesis of allylic and vinyl sulfides via pyridinium chloride-catalyzed tandem thiolation-elimination of alkenes was described. This tandem protocol offered easy access to both allylic and 1,1-diarylvinyl sulfides under mild conditions with good to excellent yields and excellent functional group tolerance. In the experiment, the researchers used many compounds, for example, Pyridinehydrochloride (cas: 628-13-7Quality Control of Pyridinehydrochloride).
Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). Reduced pyridines, namely tetrahydropyridines, dihydropyridines and piperidines, are found in numerous natural and synthetic compounds. The synthesis and reactivity of these compounds have often been driven by the fact many of these compounds have interesting and unique pharmacological properties. Quality Control of Pyridinehydrochloride