2012年11月12日 · We investigated the possibility of proton exchange reaction between protic ionic liquid of diethylmethylammonium trifluoromethanesulfonate ([dema][TfOH]) and H 2 O by …

2017年4月1日 · The high protonating power and low nucleophilicity makes trifluoromethanesulfonic acid capable of generating from organic molecules cationic species …

2009年1月13日 · Dealkylative lactonisation of allylmalonates is mediated by TfOH and occurs via an oxonium triflate intermediate, detected by NMR spectroscopy. 2H-labelling experiments …

2011年1月21日 · In this paper, we report the comparisons of O- and C-acylation for the phenol reaction with acyl halides, and Fries rearrangement of phenyl ester using TfOH. Furthermore, …

2017年6月2日 · The high protonating power and low nucleophilicity makes trifluoromethanesulfonic acid capable of generating from organic molecules cationic species …

2023年10月18日 · For RRV > 300, we provided first evidence of a glycosyl halide intermediate in the NXS/TfOH condition, though low-temperature NMR (cycles A to C in Fig. 2). To illustrate …

efficient and recyclable solid acid catalyst through direct absorption of TfOH onto very cheap chromatographic silica gel. TfOH-SiO 2 has been applied as the catalyst for intramolecular …

2025年1月30日 · Herein, we report a green, cheap, metal-free, photochemical decarboxylative protocol for the 1,4-radical conjugate addition (Giese reaction) using thioxanthone, a …

The reaction of 3-phenylhepta-3,4-dien-5-yl n-perfluorobutyl ketone 1d (0.2090 g, 0.50 mmol) with TfOH (99%, 2.3 μL, d = 1.695 g mL −1, 0.0039 g, 0.026 mmol) in toluene (5 mL) at 60 °C for 4 …

实用有效 三氟甲磺酸 （三氟乙酸）在温和的反应条件下，开发了由1,4-二烷氧基苯与多聚甲醛合成官能化的柱[ n ]芳烃和copillar [5]芳烃的）催化环寡聚反应策略，并研究了溶液相催化合成柱 …