A general synthetic route to six-membered cyclic N-aryl- and N-alkyl-substituted sulfonimidamides via an intramolecular ring closure of suitably functionalised acyclic sulfonimidamides is described. The structure of this new ring system was confirmed by various analytical methods and in one example by X-ray structural analysis.
Substituted 1,3,2,4-benzodithiadiazines: Novel derivatives, by-products, and intermediates
作者:Alexander Yu. Makarov、Irina Yu. Bagryanskaya、Yuri V. Gatilov、Tatiana V. Mikhalina、Makhmut M. Shakirov、Lyudmila N. Shchegoleva、Andrey V. Zibarev
DOI:10.1002/hc.1087
日期:——
intermediate is complicated by further reaction of 1 with SCl2 to give Herzsalts 3. With the 2:SCl2 ratio of 2:1, the formation of by-products 3 is reduced and novel compounds 1 are accessible. With ortho-I containing starting material 2j, the parent compound 1s is obtained as the result of an unex- pected I, not H, substitution. The rate of the 1C SCl2 reaction depends upon a substituent's position
标题化合物 1 通过 Ar NSN SiMe3 2 与 SCl2 的 1:1 缩合,然后每个 (Ar NSNS Cl) 中间体的分子内邻位环化,通过 1 与 SCl2 进一步反应得到赫兹盐 3,使合成复杂化。2:SCl2 比例为2:1,减少了副产物 3 的形成,并且可以获得新的化合物 1。对于含有邻位 I 的起始材料 2j,由于意外的 I 取代而不是 H 取代,获得了母体化合物 1s。1C SCl2 反应的速率取决于取代基的位置,由于对 SCl2 的反应性降低,次要 8-R 异构体 1l,p (RD Br, I) 首次从与主要 6-R 异构体的混合物中分离出来. 合成的化合物1-3通过多核(包括氮)核磁共振和X射线晶体学表征。
Synthesis of 1,1′-diacetylferrocene imines via catalytic oxo/imido heterometathesis
作者:Andrey V. Pichugov、Nikolai S. Bushkov、Liudmila V. Erkhova、Pavel A. Zhizhko、Svetlana Ch. Gagieva、Dmitry N. Zarubin、Nikolai A. Ustynyuk、Dmitry A. Lemenovskii、Haojie Yu、Li Wang
DOI:10.1016/j.jorganchem.2019.01.018
日期:2019.5
A novel CN bond forming strategy based on oxo/imido heterometathesis between N-sulfinylamines and ketones, catalyzed by a well-defined silica-supported Ti imido complex, was applied to prepare a series of hardly accessible 1,1’-diacetylferrocene ketimines.
Cycloadditions of Donor–Acceptor Cyclopropanes and ‐butanes using S=N‐Containing Reagents: Access to Cyclic Sulfinamides, Sulfonamides, and Sulfinamidines
作者:Gwyndaf A. Oliver、Maximilian N. Loch、André U. Augustin、Pit Steinbach、Mohammed Sharique、Uttam K. Tambar、Peter G. Jones、Christoph Bannwarth、Daniel B. Werz
DOI:10.1002/anie.202106596
日期:2021.12
By employing (3+2)- and (4+2)-cycloadditions of donor–acceptor (D–A) cyclopropanes and cyclobutanes with N-sulfinylamines and sulfur diimides, a variety of isothiazolidines and thiazinanes were synthesized. Use of a sulfinylamine bearing a leaving group, followed by oxidation, led to formal insertion of HNSO2 providing γ-sultams with no N-substitution.
1,2,3,5-Tetrazines and 1,2,3-triazaspiro[4.4]nonanes: remarkable products from 1,3-dipolar cycloadditions of N-sulphinylamines with substituted triazolium imides
作者:Richard N. Butler、D. Cunningham、Patrick McArdle、Gerard A. O'Halloran
DOI:10.1039/c39880000232
日期:——
Cycloadditions of aryl-N-sulphinylamines with substitutedtriazoliumimides gave new 8π-2,4,5,6-tetrasubstituted-1,2,3,5-tetrazines, the X-ray crystal structure 〈′Uone of which is reported; strained tricyclic tetra-aza tetracyclo[4.3.1.01,6]decenes are suspected as intermediates and attempts to intercept them led to new substituted1,2,3-triazaspiro[4.4]nonanes, the X-ray crystal structure of one of
Synthesis and structure of novel substituted N-sulfinylanilines
作者:Ya. V. Veremeichik、O. A. Tevs、D. B. Krivolapov、O. A. Lodochnikova、V. V. Plemenkov
DOI:10.1134/s107036321706007x
日期:2017.6
N-Sulfinylanilines derived from 4-bromoaniline, 3-nitroaniline, and 4,4′-di(ethane-1,2-diyl)dianiline were synthesized. X-ray diffraction analysis of 4-bromo-N-sulfinylaniline, 3-nitro-N-sulfinylaniline, and 4,4′-(ethane-1,2-diyl)di-N-sulfinylaniline was performed. The sulfinyl function in the planar conformation of the Ar-NSO fragment was found to have Z configuration. The nature of intra- and intermolecular