733-07-3Relevant articles and documents
Development of Versatile Sulfone Electrophiles for Suzuki-Miyaura Cross-Coupling Reactions
Nambo, Masakazu,Keske, Eric C.,Rygus, Jason P. G.,Yim, Jacky C.-H.,Crudden, Cathleen M.
, p. 1108 - 1112 (2017/08/09)
The development of fluorinated sulfone derivatives as versatile electrophiles for Suzuki-Miyaura cross-coupling reactions is described. Introducing electron-withdrawing groups on the aryl ring of the sulfone facilitates the Pd-catalyzed activation of C-SO2 bonds. Cross-coupling reactions with fluorinated sulfone electrophiles are reported, leading to a variety of multiply arylated products in good yields. The reactivity of this unusual electrophile is benchmarked versus common electrophiles and its use in iterative cross-couplings for concise synthesis of biologically active molecules is described.
A tubular europium-organic framework exhibiting selective sensing of Fe3+ and Al3+ over mixed metal ions
Sun, Daofeng,Chen, Zhen,Sun, Yanwen,Zhang, Liangliang,Sun, Di,Liu, Fuling,Meng, Qingguo,Wang, Rongming
supporting information, p. 11557 - 11559 (2013/12/04)
A luminescent europium-organic framework with tubular channels based on the H4BTMIPA ligand (H4BTMIPA = 5,5′-methylenebis(2,4, 6-trimethylisophthalic acid)) was assembled and characterized. The [H 2N(CH3)2]+ ions as counterions are located in the channels. The cation exchange between [H2N(CH 3)2]+ and metal ions resulted in complex 1 that can selectively sense Fe3+ and Al3+ ions through fluorescence quenching and enhancement, respectively.
Sulfonylation of aromatic compounds with methyl p-toluenesulfonate as a sulfonylating precursor
Khodaei,Nazari
, p. 507 - 512 (2013/02/22)
We have developed Friedel-Crafts (FC) sulfonylation of aromatic compounds with methyl p-toluenesulfonate as a sulfonylating precursor. In this procedure, methyl p-toluenesulfonate was treated and activated with pyridine to produce N-methylpyridinium p-toluenesulfonate as a sulfonylation reagent. Reactivity of this salt for the sulfonylation of mesitylene was investigated in the presence of three different promoters, such as triflic anhydride, dimethylsulfide ditriflate, and triphenylphosphine ditriflate (TPPD). All of the promoters show chemoselectivity and among them, TPPD presents a chemoselectivity in FC sulfonylation. Iranian Chemical Society 2012.