Mesure par spectrometricrie de masse des energies d'apparition pour la reaction RSS-t-Bu→RSS•+t-Bu + 。On duuit les chaleurs de Formation, puis aux energies de dissociation de la liaison SC
From symmetrical tetrasulfides to trisulfide dioxides <i>via</i> photocatalysis
作者:Kai Gong、Yilin Zhou、Xuefeng Jiang
DOI:10.1039/d1gc03242a
日期:——
achieved symmetrical tetrasulfides. Stern–Volmer analysis and radical quenching experiments demonstrated the occurrence of a single electron transfer between the photocatalyst and sulfinic acid. Bioactive molecules such as the antihypertensive drug captopril, allicin derivatives, amino acids and terpenes were efficiently and reversibly linked through sulfur–sulfur covalent bonds. Furthermore, flow-setup syntheses
Insertion of a two sulfur unit into the S–S bond—tailor-made polysulfides
作者:Andrzej Z. Rys、David N. Harpp
DOI:10.1016/s0040-4039(00)01249-1
日期:2000.9
Triphenylthiosulfenyl chloride (1) reacts with disulfides RSSR, yielding tetrasulfides as the main products. The results of the insertion for different R groups are reported. A two-step mechanism involving the formation of unsymmetrical trisulfide intermediates containing the trityl group is proposed. (C) 2000 Elsevier Science Ltd. All rights reserved.
Chakravarti, Journal of the Chemical Society, 1923, vol. 123, p. 968