54757-04-9Relevant academic research and scientific papers
Chemical Consequences of Single-Electron Oxidation of Phenylmesityldiazoethane
Little, Charles B.,Schuster, Gary B.
, p. 7167 - 7175 (1984)
Both thermolysis and photolysis of 1-phenyl-2-mesityldiazoethane (PMDE) lead exclusively to products derived from facile hydrogen or mesityl migration subsequent to, or concurrent with, loss of N2.No detectable amounts of ketazine or any dimeric hydrocarbons are formed in these reactions -a result that is attributable to the steric hindrance about the diazo carbon in PMDE.Quite in contrast, the one-electron oxidation of this diazoalkane yields no monomeric products by simple hydrogen or mesityl migration; instead, ketazine and dimeric products are formed by two distinct paths.Dimerization of diazo radical cations followed by competing secondary reactions of the resulting dication is the favored path according for the major products.In a very much slower reaction, PMDE+. attacks neutral PMDE to yield ketazine.
Synthesis and structures of new conformationally rigid 1-aza-1,3-dienes of the acenaphthene series
Skatova,Fedushkin,Maslova,Hummert,Schumann
, p. 2284 - 2289 (2008/09/18)
The Wittig reaction of 1-tert-butyliminoacenaphthen-2-one with benzylidenetriphenylphosphoranes produces new 1-aza-1,3-dienes of the acenaphthene series, which can bind butyllithium to the C=C bond of the enimine fragment C=C-C=N.
NITROGENOUS HETEROCYCLIC DERIVATIVE HAVING 2,6-DISUBSTITUTED STYRYL
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Page/Page column 48, (2010/02/14)
The invention provides a novel nitrogen-containing heterocyclic derivative having 2,6-disubstituted styryl and a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the nitrogen-containing heterocyclic derivative and a pharmaceutically acceptable salt thereof, in particular, a pharmaceutical composition effective as a sodium channel inhibitor, having an excellent analgesic action especially on neuropathic pain with minimized side effects.
The Effect of Electron-Donating and Electron-Withdrawing Substituents on 1H- and 13C-NMR Chemical Shifts of Novel 7'-Aryl-Substituted 7'-Apo-β-carotenes
Hand, Elli S.,Belmore, Kenneth A.,Kispert, Lowell D.
, p. 1928 - 1938 (2007/10/02)
The synthesis of 7'-aryl-7'-apo-β-carotenes, where aryl (Ar) is Ph, 4-NO2C6H4, 4-MeOC6H4, 4-(MeO2C)C6H4, C6F5, and 2,4,6-Me3C6H2, is described.NMR Chemical shifts of all H- and C-atoms are presented, together with specific examples of the spectra.In contrast to 1H chemical shifts which, except for H-C(8') and H-C(7'), did not differ greatly from those of β,β-carotene, considerable variations in 13C chemical shifts were observed.Signals of the C(α) atoms of the polyene chain nAr were shielded, those of the C(β) atoms were deshielded, with some exceptions when n = 1; the effects decreased with increasing n.
