84783-81-3Relevant articles and documents
Rhodium(iii) vs. cobalt(iii): a mechanistically distinct three-component C-H bond addition cascade using a Cp*RhIII catalyst
Li, Ruirui,Ju, Cheng-Wei,Zhao, Dongbing
supporting information, p. 695 - 698 (2019/01/29)
Three-component C-H bond additions across two different coupling partners remain underdeveloped. Herein, we report the first three-component RhIII-catalyzed C-H bond additions to a wide range of dienes and aldehydes. Our method constitutes a complementary access with Ellman's CoIII-catalytic system to homoallylic alcohols.
An accurate mass spectrometric approach for the simultaneous comparison of GSH, Cys, and Hcy in L02 cells and HepG2 cells using new NPSP isotope probes
Li, Lu,Wang, Xiuli,Li, Qingling,Liu, Pengyuan,Xu, Kehua,Chen, Hao,Tang, Bo
supporting information, p. 11317 - 11320 (2015/07/07)
A novel accurate method was developed for simultaneous quantitative comparison of GSH, Cys and Hcy in normal cells and cancer cells using new NPSP isotope probes based on LC/ESI-MS.
Collision-induced Dissociations of Substituted Benzyl Negative Ions in the Gas Phase. The Elimination of C4H4
Currie, Graeme J.,Bowie, John H.,Massy-Westropp, Ralph A.,Adams, Gregory W.
, p. 403 - 408 (2007/10/02)
The major collision-induced dissociation of PhEt2 involve the losses of H, H2, and CH4.Loss of H occurs from the phenyl ring, H2 is eliminated principally by the process while methane is lost by the stepwise process in which t
Syntheses and Spectral Properties of several Branched-chain Polyphenyls containing 1,2,3-Trisubstituted Ring(s)
Ozasa, Shigeru,Fujioka, Yasuhiro,Kikutake, Jun-ichiro,Ibuki, Eiichi
, p. 1572 - 1581 (2007/10/02)
Nine polyphenyls, including six new compound, 3'-phenyl-o-quaterphenyl (3), 2,6-diphenyl-m- (4), 2,6-diphenyl-p-terphenyl (5), 2,6,5'-triphenyl-m-terphenyl (6), 2',2''-diphenyl-m-quaterphenyl (8), and 2'-(phenyl-d5)-m-terphenyl (9), were synthesized by the Ullmann coupling reaction of aryl iodide(s) or by the Karash-type coupling reaction of deuterated aryl Grignard reagent with aryl iodide catalyzed by bis(acetylacetonato)-nickel(II).Infrared studies of the polyphenyls showed that the range 730-770 cm-1, generally accepted as the position of the C-H out-of-plane bending bands of phenyl rings, should be widened slightly to 730-781 cm-1.The high frequency bands were found to be correlated closely to the sterically overcrowded structure of terminal rings.Proton magnetic resonance spectral studies indicated that the characteristic spectral features of the polyphenyls containing 1,2,3-trisubstituted ring(s) were fully consistent with their conformational aspects deduced from stereomodels.Ultraviolet spectral data suggeted that the most probable conformation of the highly crowded 3',6''-diphenyl-o-quaterphenyl (1) is one in which the interplanar angles of the pivot bonds between the 1,2,3-trisubstituted ring and three benzene rings are rather smaller than those of the less crowded 2'-phenyl-m-terphenyl (2).Keywords - Ullmann reaction; nickel-complex-catalyzed cross-coupling; quaterphenyl; deuterated quaterphenyl; quinquephenyl; sexiphenyl; polyphenyl; IR; UV; 1H-NMR
