AbstractA novel, air and thermally stable, yet highly reactive trifluoromethylthiolating reagent, CF3SO2SCF3 (1), was prepared easily in one step from commercially inexpensive CF3SO2Na and Tf2O. 1 is a highly versatile and atom‐efficient reagent that can generate one equivalent of CF3S+, two equivalents of CF3S−, or a combination of CF3S⋅/CF3⋅ species. Many high‐yielding CF3S reactions of C, O, S, and N‐nucleophiles were achieved, including the simple‐step preparations of many reported CF3S reagents. 1 delivered a hitherto hard‐to‐synthesize ArOSCF3 that was followed by a novel CF3SII‐rearrangement. Through Cu or TDAE/Ph3P combinations, 1 generated two equivalents of CF3S anion species, and the photo‐catalyzed reactions of alkenes with 1 provided CF3/CF3S‐containing products in high atom‐efficiency.
摘要 一种新型、空气和热稳定性高且反应性强的三氟甲基硫代试剂--CF3SO2SCF3 (1),是用市场上廉价的 CF3SO2Na 和 Tf2O 一步法轻松制备的。1 是一种用途广泛、原子效率高的试剂,可生成一个当量的 CF3S+、两个当量的 CF3S- 或 CF3S⋅/CF3⋅ 物种的组合。我们实现了许多 C、O、S 和 N-亲核物的高产 CF3S 反应,包括许多已报道的 CF3S 试剂的简单制备步骤。1 提供了迄今为止难以合成的 ArOSCF3,随后进行了新颖的 CF3SII 重组。通过 Cu 或 TDAE/Ph3P 组合,1 生成了两个等量的 CF3S 阴离子物种,烯与 1 的光催化反应以高原子效率提供了含 CF3/CF3S 的产物。