Liu, Yonghong published the artcileSodium Selenosulfate from Sodium Sulfite and Selenium Powder: An Odorless Selenylating Reagent for Alkyl Halides to Produce Dialkyl Diselenide Catalysts, Safety of 3-Chlorobenzylchloride, the publication is Synlett (2019), 30(14), 1698-1702, database is CAplus.
Na2SeSO3, which can be generated in situ by the reaction of Na2SO3 with Se power, was found to be an odorless reagent for the selenenylation of alkyl halides RX (R = Bu, cyclohexyl, 3-fluorobenzyl, etc.; X = Cl, Br) to produce dialkyl diselenides RSeSeR. By using aqueous EtOH as the solvent and avoiding the generation of a malodorous selenol intermediate, the selenylation reaction with Na2SeSO3 is much more environmentally friendly than conventional methods. Owing to the cheap and abundant starting materials and selenium reagents, the novel synthetic method reduces the production costs of dialkyl diselenides as organoselenium catalysts, thereby advancing practical applications of organoselenium-catalysis technologies.
Synlett published new progress about 620-20-2. 620-20-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 3-Chlorobenzylchloride, and the molecular formula is C7H6Cl2, Safety of 3-Chlorobenzylchloride.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics