53839-07-9Relevant academic research and scientific papers
Synthesis, characterization, and catalytic activity of heterometallic ion-pair Ni/Mn and Ni/Zn complexes
Thuyweang, Nittaya,Koh, Lip Lin,Andy Hor,Leelasubcharoen, Somying
, p. 1219 - 1235 (2014)
Two new heterometallic compounds, [Ni(bpy)3][Mn(NCO) 4]·H2O (1) and [Ni(phen)3] 2[Zn(NCO)4]2·4DMSO·H 2O (2) [bpy = 2,2′-bipyridine and phen = 1,10-phenanthroline], hav
Synthesis, characterization and catalytic activity of a heterometallic Ni/Zn compound in the H/D exchange of salicylaldehyde
Thuyweang, Nittaya,Koh, Lip Lin,Hor, T.S. Andy,Leelasubcharoen, Somying
, p. 222 - 223 (2014)
The heterometallic Ni/Zn compound [Ni(bpy)3][Zn(NCO) 4]·H2O was synthesized and crystallographically characterized. This complex is an efficient catalyst in the H/D exchange reaction of salicylaldehyde, as confirmed by su
Straightforward assembly of benzoxepines by means of a rhodium(III)- catalyzed C-H functionalization of o-vinylphenols
Seoane, Andres,Casanova, Noelia,Quinones, Noelia,Mascarenas, Jose L.,Gulias, Moises
supporting information, p. 834 - 837 (2014/02/14)
Readily available o-vinylphenols undergo a formal (5 + 2) cycloaddition to alkynes when treated with catalytic amounts of [Cp*RhCl2] 2 and Cu(OAc)2. The reaction, which involves the cleavage of the terminal C-H bond of the alkenyl moiety, generates highly valuable benzoxepine skeletons in a practical, versatile, and atom-economical manner. Using carbon monoxide instead of an alkyne as reaction partner leads to coumarin products which formally result from a (5 + 1) cycloaddition.
Deuterium isotope effects in13C NMR spectra of intramolecularly hydrogen-bonded salicylaldehyde-4-phenylthiosemicarbazone
Novak, Predrag,Piculjan, Katarina,Biljan, Tomislav,Hrenar, Tomica,Cindric, Marina,Rubcic, Mirta,Meic, Zlatko
experimental part, p. 575 - 581 (2009/09/25)
The structure of salicylaldehyde-4-phenylthiosemicarbazone (1) has been studied by using NMR and DFT methods. It was demonstrated that in DMSO-d 6 and CD2Cl2 solution the molecule existed in the hydroxy-thione tautomeric f
A New Method for Obtaining Isotopic Fractionation Data at Multiple Sites in Rapidly Exchanging Systems
Jarret, Ronald M.,Saunders, Martin
, p. 2648 - 2654 (2007/10/02)
A new method for rapidly and conveniently obtaining isotopic fractionation factors in dilute aqueous solutions of compounds containing rapidly exchanging OH, NH, and SH groups is described.Shifts in the positions of NMR peaks for spectroscopically observable nuclei induced by isotopic substitution are the basis of this procedure which has the unique capability of separately measuring the isotopic exchange constants simultaneously for several different groups in the same molecule.The results for a series of alcohols, amines, thiols, phenols, acids, and amides with use of 13C NMR spectroscopy are reported.Atypically low values of Kfrac are observed in several cases, indicating that there are strong internal hydrogen bonds in competition with those to water, yielding conformational information.
PHOTOCHEMICAL BEHAVIOUR OF MATRIX-ISOLATED SALICYLALDEHYDE AND ITS DERIVATIVES. TRAPPING OF A NON-HYDROGEN-BONDED CONFORMER
Gebicki, J.,Krantz, A.
, p. 1617 - 1622 (2007/10/02)
The photochemical behaviour of salicylaldehyde, its 3-, 4-, and 5-methoxy derivatives, 2'-hydroxyacetophenone (7), and methyl salicylate (8) have been investigated in argon, xenon, nitrogen, and carbon monoxide matrices.Non-hydrogen-bonded conformers of s
