Electron transfer in the peroxytrifluoroacetic acid-assisted sulfoxidation and oxidative destruction of benzhydryl sulfides
作者:A. R. Akopova、A. S. Morkovnik、V. N. Khrustalev、A. V. Bicherov
DOI:10.1007/s11172-013-0159-1
日期:2013.5
The reactions of benzhydryl sulfides Ph2CHSCH2R (R = H, CONH2, COOH, CN) with peroxytrifluoroacetic acid in CF3COOH were studied experimentally and by the quantum chemical density functional theory (DFT) method and exhibited an unusual dependence on the substituent R. When R≠H, a complicated oxidative destruction of the substrates occurs to form 2,4,6-tribenzhydrylphenol as one of the products, while
通过实验和量子化学密度泛函理论 (DFT) 方法研究了二苯甲基硫化物 Ph2CHSCH2R (R = H, CONH2, COOH, CN) 与过氧三氟乙酸在 CF3COOH 中的反应,并表现出对取代基 R 的异常依赖性。 当 R≠ H,底物发生复杂的氧化破坏,形成 2,4,6-三二苯甲基苯酚作为产物之一,而在 R = H 的情况下,起始二苯甲基硫化物被顺利亚氧化。这一事实是由于在初始步骤中从底物到试剂的共同电子转移以及随后形成的物种转化的差异。
An efficient, one-pot synthesis of N-isatinylmethylthioacetic acid and its derivatives as potential anticancer agents
作者:Lev Yu. Ukhin、Arina R. Akopova、Anatolii S. Morkovnik、Kirill Yu. Suponitzky、Evgenii N. Shepelenko、Alexander V. Bicherov、Leonid D. Popov
DOI:10.1016/j.tetlet.2014.10.036
日期:2014.11
A convenient, one-pot synthesis of N-isatinylmethylthioacetic acid and several of its derivatives, as potential anticancer agents, by reactions of N-(hydroxymethyl)isatins with Bunte salts in TFA is described. The reactions involve attack of these salts on the S(II) atom by C-electrophilic species generated from hydroxy derivatives.
A convenient method for the preparation of functionalized derivatives of isobenzofuran-1(3H)-ones and isoindol-1(3H)-ones by reactions of their carbocations with Bunte salts is described. The reactions proceed by means of electrophilic attack on the S(II)-atom of the Bunte salts. (C) 2011 Elsevier Ltd. All rights reserved.