Insertion of a two sulfur unit into the S–S bond—tailor-made polysulfides
摘要:
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.
Three sulfur atom insertion into the SS bond—pentasulfide preparation
作者:Yihua Hou、Imad A Abu-Yousef、David N Harpp
DOI:10.1016/s0040-4039(00)01357-5
日期:2000.10
Chloro(triphenylmethyl)trisulfide (1) reacts under mild conditions with symmetric primary dialkyl disulfides and aromatic disulfides giving pentasulfides as the main products in good yield and selectivity. A mechanism involving a triphenylmethyl alkyl/phenyl tetrasulfide intermediate is discussed.
Crack healing and reclaiming of vulcanized rubber by triggering the rearrangement of inherent sulfur crosslinked networks
作者:H. P. Xiang、H. J. Qian、Z. Y. Lu、M. Z. Rong、M. Q. Zhang
DOI:10.1039/c5gc00754b
日期:——
Vulcanized rubber made from an industrial formula can be healed and reclaimed by activating the rearrangement of the inherent sulfur crosslinked networks under the catalysis of CuCl2.
使用工业配方制成的硫化橡胶可以在CuCl2的催化下激活内在硫交联网络的重排,从而得以治愈和回收。
Reduction of nitrite to nitric oxide and generation of reactive chalcogen species by mononuclear Fe(<scp>ii</scp>) and Zn(<scp>ii</scp>) complexes of thiolate and selenolate
thiols and PhSeH (proton source), could regenerate either 1aZn/5Zn and 2Zn respectively, along with the production of nitricoxide (NO) where the yield of NO increases in the order tBuSH ≪ PhCH2SH < PhSH < PhSeH. In contrast to this, 1aFe, 2Fe and 5Fe could affect the direct reduction of NO2− in the absence of protons to generate NO and [(Py2ald)(ONO)Fe}2-μ2-O] (8Fe). Moreover, 8Fe could regenerate 5Fe
一系列新型 Zn( II ) 和 Fe( II ) 化合物 [(Py2ald)M(ER)] (E = S, R = Ph: M = Zn, 1a Zn ; M = Fe, 1a Fe ; E = S,R = 2,6-Me 2 -C 6 H 3 :M = Zn, 1b Zn ;M = Fe, 1b Fe ;E = Se,R = Ph:M = Zn, 2 Zn ; , 2 Fe ) 和 [(Py2ald)M] 2 2+ (M = Zn, 5 Zn ; M = Fe, 5 Fe ) 被提出。 化合物1a Zn可以与亚硝酸盐 (NO 2 − ) 反应生成 [(Py2ald)Zn(ONO)] ( 3 Zn ),经硫醇和 PhSeH(质子源)处理后,可以再生1a Zn / 5 Zn和2 Zn分别随着一氧化氮 (NO) 的产生而增加,其中 NO 的产量按t BuSH ≪ PhCH 2 SH < PhSH
LEVINSTEIN MUSTARD GAS. IV. THE bis(2-CHLOROETHYL) POLYSULFIDES<sup>1</sup>
作者:REYNOLD C. FUSON、CHARLES C. PRICE、DONALD M. BURNESS、ROBERT E. FOSTER、WILLIAM R. HATCHARD、ROBERT D. LIPSCOMB
DOI:10.1021/jo01175a010
日期:1946.9
Mott, Andrew W.; Barany, George, Journal of the Chemical Society. Perkin transactions I, 1984, # 11, p. 2615 - 2621