66304-01-6Relevant academic research and scientific papers
Switchable Copper-Catalyzed Approach to Benzodithiole, Benzothiaselenole, and Dibenzodithiocine Skeletons
Huang, Meng-Qiao,K?rk?s, Markus D.,Li, Tuan-Jie,Liu, Jian-Quan,Shatskiy, Andrey,Wang, Xiang-Shan
supporting information, p. 3454 - 3459 (2020/04/30)
A copper-catalyzed reaction between 2-bromo-benzothioamides and S8 or Se involving sulfur rearrangement is reported, enabling access to benzodithioles 2 and benzothiaselenoles 6 in the presence of Cs2CO3. In the absence of S8 or Se, the reaction affords dibenzodithiocines 7 via two consecutive C(sp2)-S Ullmann couplings.
Use of dimethyldioxirane for the oxidation of 1,2-dithiolan-3-ones to 1- oxides or 1,1-dioxides. Preparation of 3H-1,2-benzodithiol-3-one 1,1-dioxide (Beaucage sulfurizing reagent)
Marchan, Vicente,Gibert, Mariona,Messeguer, Angel,Pedroso, Enrique,Grandas, Anna
, p. 43 - 45 (2007/10/03)
Quantitative oxidation of 3H-1,2-benzodithiol-3-one to 3H-1,2- benzodithiol-3-one 1, 1-dioxide (Beaucage sulfurizing reagent) is achieved by reaction of the dithiolanone with a fourfold molar excess of dimethyldioxirane for 2-4 hours at room temperature. A one- or twofold molar excess of reagent affords the 1-oxide as the main product.
