127138-66-3Relevant articles and documents
Redox-Neutral Borylation of Aryl Sulfonium Salts via C-S Activation Enabled by Light
Huang, Chen,Feng, Jie,Ma, Rui,Fang, Shuaishuai,Lu, Tao,Tang, Weifang,Du, Ding,Gao, Jian
, p. 9688 - 9692 (2019)
Reported here is a novel photoinduced strategy for the borylation of aryl sulfonium salts using bis(pinacolato)diboron as the boron source. This method exploits redox-neutral aryl sulfoniums to gain access to aryl radicals via C-S bond activation upon photoexcitation under transition-metal-free conditions. Therefore, it grants access to diverse arylboronate esters with good performance from easily available aryl sulfoniums accompanied by mild conditions, operational simplicity, and easy scalability.
Nickel-Catalyzed Negishi-Type Arylation of Trialkylsulfonium Salts
Minami, Hiroko,Nogi, Keisuke,Yorimitsu, Hideki
supporting information, p. 1542 - 1546 (2021/09/06)
Negishi-type arylation of trialkylsulfonium salts with arylzinc reagents has been accomplished under nickel catalysis. The use of cyclohexanethiol as an additional ligand was found to be particularly important to promote C-S cleavage. The present reaction accommodates one-pot arylation of dialkyl sulfides by combining with S -methylation with MeOTf. Mechanistic experiments suggest that C-S cleavage would proceed via single-electron transfer (SET) to generate the most stable carbon-centered radical and that the thiolate ligand would promote the C-S cleavage and radical recombination step.
Novel chiral calix[4]arenes by direct asymmetric epoxidation reaction
Bonini, Carlo,Chiummiento, Lucia,Funicello, Maria,Lopardo, Maria Teresa,Lupattelli, Paolo,Laurita, Alessandro,Cornia, Andrea
, p. 4233 - 4236 (2008/09/20)
(Chemical Equation Presented) We report the first asymmetric synthesis of trans optically active (+) C2 1,3-bisarylepoxide of calix[4]arene in excellent chemical yield and >99% ee, and its enantiospecific conversion to the corresponding bis-dio
