Phenylbis(fluorosulfonyl)- and phenylbis(trifluoromethylsulfonyl)-methyliodonium triflates
作者:I.I. Maletina、V.V. Orda、Yu.L. Yagupolskii
DOI:10.1016/0022-1139(94)03091-d
日期:1995.1
Phenyliodoniumbis(fluorosulfonyl)methylide (I) and phenyliodoniumbis(trifluoromethylsulfonyl)methylide (II) are converted to triflates of phenylbis(fluorosulfonyl)- (III) and phenylbis(trifluoromethylsulfonyl)-methyliodonium (IV), respectively, by the addition of equimolar amounts of trifluoromethanesulfonic acid in CH2Cl2. The existence of these triflates has been confirmed by 19F NMR spectroscopy
通过加入等摩尔量的苯基碘鎓双(氟磺酰基)甲基化物(I)和苯基碘鎓双(三氟甲基磺酰基)甲基化物(II)分别转化为苯基双(氟磺酰基)-(III)和苯基双(三氟甲基磺酰基)-甲基碘鎓(IV)的三氟甲磺酸酯。CH 2 Cl 2中三氟甲磺酸的量。这些三氟甲磺酸酯的存在已通过19 F NMR光谱法确认。碘鎓盐III和IV之间的反应亲核试剂(例如苯酚衍生物,硫氰酸盐,亚硝酸盐和氰酸盐)可形成强CH酸,即四丁基铵盐形式的三取代甲烷HC(SO 2 R)2 Nu,RF,CF 3。
Electrochemical fluorination of methanedisulfonyl fluoride
作者:F.W. Klink、D.J. Wasser、C.C. Liu
DOI:10.1016/s0022-1139(00)80508-4
日期:1986.6
The electrochemicalfluorination of methanedisulfonyl fluoride in anhydroushydrogenfluoride to produce difluoromethanedisulfonyl fluoride, a precursor of difluoromethane disulfonic acid, was investigated. This study was carried out in a microprocessor-aided modified Simons' reactor system at constant anodic potential using a Cu/CuF2 reference electrode. Product yields of 75–82%, current efftciencies
The reaction of methanedisulfonyl fluoride (1) with an N-halogenosuccinimide leads to the hitherto unknown dihalogenomethanedisulfonyl fluorides (halogen=chlorine (2b), bromine (2c), iodine (2d)). The hitherto unknown monohalogenomethanedisulfonyl fluorides (halogen=chlorine (3b), bromine (3c), iodine (3d)) can be prepared by the treatment of potassium-(4) and silver-di(fluorosulfonyl)-methanide (5)
Ethene‐1,1‐disulfonyl Difluoride (EDSF) for SuFEx Click Chemistry: Synthesis of SuFExable 1,1‐Bissulfonylfluoride Substituted Cyclobutene Hubs
作者:Christopher J. Smedley、Marie‐Claire Giel、Thomas Fallon、John E. Moses
DOI:10.1002/anie.202303916
日期:2023.7.24
Ethene-1,1-disulfonyl difluoride (EDSF) represents a novel SuFEx connector hub. Here, we demonstrate the [2+2] cycloaddition reaction of EDSF with aryl acetylenes, which rapidly and regioselectively generates unique 1,1-bissulfonylfluoride substituted cyclobutenes. Moreover, these products can selectively undergo SuFEx reactions with phenols, highlighting their potential for constructing complex molecular