The sulphur(<scp>II</scp>)–nitrogen bond. Part II. The transamination of diamino sulphides and sulphenamides
作者:D. A. Armitage、M. J. Clark、A. M. White
DOI:10.1039/j39710003141
日期:——
The application of transamination to diaminosulphides and to benzene- and methane-sulphenamides gives high yields of sulphur(II) nitrogen compounds. The mixtures resulting from secondary amines and methanesulphenyl chloride can be conveniently separated by use of this reaction. Transamination of gem-diamines has been observed.
ELECTRON SPIN RESONANCE STUDY ON SULFENAMIDE AND DIAMINO SULFIDE RADICAL CATIONS
作者:Akira Izuoka、Michio Kobayashi
DOI:10.1246/cl.1981.1603
日期:1981.11.5
Esr spectra of radicalcations of sulfenamides and diamino sulfides were observed in nitroalkane containing aluminum chloride. These radicals are stable at room temperature. Non-equivalence of two N-methylene groups indicates the restricted rotation around S–N bond in the radicalcations.
Formation and Reactions of Alkoxydiaminosulfonium Salts
作者:Hiroshi Minato、Kentaro Okuma、Michio Kobayashi
DOI:10.1246/bcsj.49.3601
日期:1976.12
Ethoxydimorpholinosulfonium tetrafluoroborate and tetraphenylborate were prepared by ethylation of dimorpholino sulfoxide. They were readily hydrolyzed with water but did not react with methanol. In the reactions with nucleophiles, they acted as ethylating agent for β-picoline, triethylamine, diethylamine, methoxide ion, and chloride ion. When dimorpholino sulfide, 1-chlorobenzotriazole, and an alcohol were
通过二吗啉亚砜的乙基化制备乙氧基二吗啉锍四氟硼酸盐和四苯基硼酸盐。它们很容易用水水解,但不与甲醇反应。在与亲核试剂的反应中,它们作为β-甲基吡啶、三乙胺、二乙胺、甲醇离子和氯离子的乙基化剂。当二吗啉代硫化物、1-氯苯并三唑和醇在-80 °C 反应时,主要产物是烷基氯、二吗啉代亚砜和吗啉氯化物。烷氧基二吗啉代锍氯化物被认为是中间体,它通过氯离子对烷基的 SN2 型亲核攻击而分解。当使用 (+)-2- 辛醇时,形成的 2-氯辛烷几乎完全反转构型(对映体过量,97%)。
Sulfur(II)—metal coordination compounds. Group VI metal carbonyl complexes with N,N′-thiobisamines ligands
作者:Carlos Diaz、Guillermo Gonzalez
DOI:10.1016/s0020-1693(00)81027-0
日期:1984.5
dimethylamine, piperidine, morpholine or dibenzylamine) to UV-irradiated tetrahydrofuran solutions of M(CO)6. The IR, 1HNMR, and UV-visible spectral data used for characterizing the products support the coordination of the thiobisamine via the sulfur(II) atom.
Examining the Alkaline Stability of Tris(dialkylamino)sulfoniums and Sulfoxoniums
作者:Megan Treichel、Ruiran Xun、Camille F. Williams、Jamie C. Gaitor、Samantha N. MacMillan、Jessica L. Vinskus、C. Tyler Womble、Tomasz Kowalewski、Kevin J. T. Noonan
DOI:10.1021/acs.joc.2c01289
日期:2022.12.2
Herein, a synthetic method was developed to prepare a series of tris(dialkylamino)sulfonium and sulfoxonium cations from sulfur monochloride. Alkaline stability studies of these two cation families in 2 M KOH/CD3OH solution at 80 °C revealed how degradation pathways change as a function of the oxidation state of the S center, as determined by 1H NMR spectroscopy. The sulfonium cations (+S(NR2)3) typically
在此,开发了一种合成方法,以从一氯化硫制备一系列三(二烷基氨基)硫鎓和硫氧鎓阳离子。这两个阳离子家族在 80 °C 的 2 M KOH/CD 3 OH 溶液中的碱性稳定性研究揭示了降解途径如何随着 S 中心氧化态的变化而变化,如1 H NMR 光谱所确定的那样。硫阳离子 ( + S(NR 2 ) 3 ) 通常会通过硫原子的亲核攻击而降解,同时失去氨基和质子转移反应生成亚砜,而氧化硫 ( + O= S(NR 2 ) 3) 往往会因失去 R 基团而降解,形成亚砜亚胺。在这项工作中探索的硫鎓和硫鎓类化合物中,三(哌啶子基)硫鎓阳离子具有出色的碱稳定性。这种氧化应适合作为阴离子交换膜 (AEM) 中的束缚阳离子,或作为双相反应中的相转移催化剂进行未来检测。