69468-42-4Relevant articles and documents
Synthetic method of diselenide compound
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Paragraph 0047-0063, (2021/03/13)
The invention relates to a synthetic method of a diselenide compound, which comprises the following steps: putting arylboronic acid or derivatives thereof, elemental selenium, trimethylsilyl cyanide and an organic solvent into a reaction container to obtain a mixed solution, heating the mixed solution to 110-140 DEG C, stirring and reacting at the temperature for 18-30 hours to obtain a reaction solution, and carrying out aftertreatment to obtain a diselenide compound, wherein the ratio of the arylboronic acid or the derivative of the arylboronic acid to the elemental selenium to the trimethylsilyl cyanide is (6-10): (9-11): 1, wherein the dosage of the organic solvent is 4-6ml/mmol based on the molar weight of the arylboronic acid or the derivative thereof. The method has the following beneficial effects: 1, elemental selenium is adopted to replace a metal catalyst, metal is not needed for catalytic reaction, and the product is relatively environment-friendly; 2, the reaction conditions are mild, and the functional group tolerance is good; 3, a non-aryl phenol compound is used, so that the method is relatively environment-friendly; and 4, the yield is high.
Highly selective radical isothiocyano-chalcogenization of alkenes with NH4SCN in water
He, Ze,Kang, Xiaokang,Xu, Chao,Zeng, Qingle
supporting information, p. 7544 - 7548 (2021/10/12)
In the presence of catalytic amounts of molecular iodine and stoichiometric potassium persulfate, a green, highly chemoselective, regioselective and cis-selective radical isothiocyano-chalcogenization of alkenes with NH4SCN in water is disclosed. This three component reaction features high selectivities, an environmentally benign process, mild conditions, high yields, excellent functional-group tolerance, and broad substrate scope. The resulting products can be further transformed into other molecules with structural similarities of these compounds to bioactive analogs.
Visible-light-driven radical 1,3-addition of selenosulfonates to vinyldiazo compounds
Li, Weiyu,Zhou, Lei
supporting information, p. 6652 - 6658 (2021/09/10)
Herein, we report a visible-light-driven radical 1,3-selenosulfonylation of vinyldiazo compounds with selenosulfonates, providing various γ-seleno allylic sulfones in good yields. This photochemical reaction was carried out at room temperature in an open flask using ethyl acetate as the solvent without any photocatalysts or additives. The control experiments corroborated that the 1,3-addition proceeded via a radical-chain propagation process. The synthetic applications of the resulting products were demonstrated by deselenization, reduction, bromination and allylation.
