557780-43-5Relevant articles and documents
Guest-controlled incommensurate modulation in a meta-rigid metal-organic framework material
Li, Jiangnan,Zhou, Zhengyang,Han, Xue,Zhang, Xinran,Yan, Yong,Li, Weiyao,Smith, Gemma L.,Cheng, Yongqiang,McCormick McPherson, Laura J.,Teat, Simon J.,Frogley, Mark D.,Rudi?, Svemir,Ramirez-Cuesta, Anibal J.,Blake, Alexander J.,Sun, Junliang,Schr?der, Martin,Yang, Sihai
, p. 19189 - 19197 (2020)
Structural transitions of host systems in response to guest binding dominate many chemical processes. We report an unprecedented type of structural flexibility within a meta-rigid material, MFM-520, which exhibits a reversible periodic-to-aperiodic structural transition resulting from a drastic distortion of a [ZnO4N] node controlled by the specific host-guest interactions. The aperiodic crystal structure of MFM-520 has no three-dimensional (3D) lattice periodicity but shows translational symmetry in higher-dimensional (3 + 2)D space. We have directly visualized the aperiodic state which is induced by incommensurate modulation of the periodic framework of MFM-520·H2O upon dehydration to give MFM-520. Filling MFM-520 with CO2 and SO2 reveals that, while CO2 has a minimal structural influence, SO2 can further modulate the structure incommensurately. MFM-520 shows exceptional selectivity for SO2 under flue-gas desulfurization conditions, and the facile release of captured SO2 from MFM-520 enabled the conversion to valuable sulfonamide products. MFM-520 can thus be used as a highly efficient capture and delivery system for SO2.
Visible-Light Photoredox-Catalyzed Aminosulfonylation of Diaryliodonium Salts with Sulfur Dioxide and Hydrazines
Liu, Nai-Wei,Liang, Shuai,Manolikakes, Georg
supporting information, p. 1308 - 1319 (2017/04/18)
A photoredox-catalyzed three-component synthesis of N-aminosulfonamides starting from diaryliodonium salts, hydrazines and sulfur dioxide is reported. This reaction proceeds under mild conditions at room temperature and is driven by visible light. A simple bisulfite salt can be used as a readily available and easy-to-handle sulfur dioxide source. Mechanistic studies support a catalytic photoredox pathway with the diaryliodonium salt as convenient source for aryl radicals. (Figure presented.).
A palladium-catalyzed coupling reaction of aryl nonaflates, sulfur dioxide, and hydrazines
An, Yuanyuan,Xia, Hongguang,Wu, Jie
supporting information, p. 1665 - 1669 (2016/02/09)
A facile route to synthesise N-aminosulfonamides through a palladium-catalyzed coupling reaction of aryl nonaflates, sulfur dioxide, and hydrazines is reported. This transformation proceeds in the presence of Pd(OAc)2/XantPhos, and TBAB in 1,4-dioxane at 80°C, leading to the corresponding N-aminosulfonamides in moderate to good yields. The reaction scope has been demonstrated, and good functional tolerance is observed. A plausible mechanism is proposed through the insertion of sulfur dioxide.