71996-32-2Relevant academic research and scientific papers
Dibenzothiophenesulfilimines: A Convenient Approach to Intermolecular Rhodium-Catalysed C?H Amidation
Antoni, Patrick W.,Mackenroth, Alexandra V.,Mulks, Florian F.,Rudolph, Matthias,Helmchen, Günter,Hashmi, A. Stephen K.
supporting information, p. 8235 - 8238 (2020/06/17)
A sulfilimine-based Group 9 transition-metal-catalysed C?H amidation procedure is reported. Dibenzothiophene-based sulfilimines were shown to constitute a class of novel amidation reagents which enable the transfer of a wide range of N-sulfonyl and N-acyl
Gold-catalyzed nitrene transfer to activated alkynes: Formation of α,β-unsaturated amidines
Li, Chaoqun,Zhang, Liming
supporting information; experimental part, p. 1738 - 1741 (2011/05/11)
A gold-catalyzed intermolecular nitrene transfer to alkynes was developed for the first time, revealing a new mode of nitrene transfer and providing a novel access to versatile α-imino metal carbenes. Various mild nitrene-transfer reagents were examined, and iminopyridium ylides especially those based on 3,5-dichloropyridine proved be highly effective. With activated alkynes such as N-alkynyloxazolidinones as substrates, α,β- unsaturated amidines were formed in mostly good yields.
Generation of nitrene by the photolysis of N-substituted iminodibenzothiophene
Morita, Hiroyuki,Tatami, Atsushi,Maeda, Tetsuo,Byung, Ju Kim,Kawashima, Wataru,Yoshimura, Toshiaki,Abe, Hitoshi,Akasaka, Takeshi
body text, p. 7159 - 7163 (2009/04/18)
(Chemical Equation Presented) To evaluate the ability of dibenzothiophene N-substituted sulfilimines as photochemical nitrene sources, their photolyses in the presence of several trapping reagents, such as sulfides, olefins, and phosphorus compounds, were performed. In the reactions, the corresponding imino-transfer compounds, namely sulfilimines, aziridines, and iminophosphoranes, were formed in good yields, indicating dibenzothiophene N-tosyl and N-acylsulfilimines have a potent nature as nitrogen sources.
Photochemistry of N-acetyl-, N-trifluoroacetyl-, N- mesyl-, and N-tosyldibenzothiophene sulfilimines
Desikan, Vasumathi,Liu, Yonglin,Toscano, John P.,Jenks, William S.
, p. 4398 - 4414 (2008/09/21)
(Chemical Equation Presented) Time-resolved infrared (TRIR) spectroscopy, product studies, and computational methods were applied to the photolysis of sulfilimines derived from dibenzothiophene that were expected to release acetylnitrene, trifluoroacetylnitrene, mesylnitrene, and tosylnitrene. All three methods provided results for acetylnitrene consistent with literature precedent and analogous experiments with the benzoylnitrene precursor, i.e., that the ground-state multiplicity is singlet. In contrast, product studies clearly indicate triplet reactivity for trifluoroacetylnitrene, though TRIR experiments were more ambiguous. Product studies suggest that these sulfilimines are superior sources for sulfonylnitrenes, which have triplet grounds states, to the corresponding azides, and computational studies shed light on the electronic structure of the nitrenes.
POLAROGRAPHIC STUDY OF STRUCTURE-PROPERTIES RELATIONSHIP OF p-TOSYL SULFILIMINES
Svoronos, Paris,Horak, Vaclav,Zuman, Peter
, p. 139 - 148 (2007/10/02)
A structure-reactivity relationship for a series of eight N-p-tosyl sulfilimines and five related sulfoxides is investigated by polarographic reduction of the S-N and S-O bonds respectively.Conjugation of the tricoordinated sulfur is the dominant factor t
