Ni(cod)(duroquinone)-Catalyzed C-N Cross-Coupling for the Synthesis of N,N-Diarylsulfonamides was written by You, Tian;Li, Junqi. And the article was included in Organic Letters in 2022.SDS of cas: 68716-49-4 This article mentions the following:
A C-N cross-coupling reaction of weakly nucleophilic N-arylsulfonamides and aryl bromides to access N,N-diarylsulfonamides RR1NSO2R2 [R = n-Bu, Ph, 4-MeOC6H4, 4-F3CC6H4; R1 = Ph, 4-ClC6H4, 3-furyl, etc.; R2 = cyclopropyl, 4-MeC6H4, 4-PhC6H4, etc.] using Ni(cod)(DQ) as a catalyst without addnl. ligands was reported. The process was compatible with electron-deficient and electron-rich aryl and heteroaryl bromides and could be applied to the derivatization of an N-arylsulfonamide pharmaceutical compound In the experiment, the researchers used many compounds, for example, 2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 68716-49-4SDS of cas: 68716-49-4).
2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 68716-49-4) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.SDS of cas: 68716-49-4
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts