7422-90-4Relevant articles and documents
Chromatographic component of identification of the transformation products of 1,1-dimethylhydrazine in the presence of sulfur
Zenkevich,Ul'Yanov,Golub,Buryak
, p. 1106 - 1114 (2014/08/05)
The gas-chromatographic retention indices of the products of 1,1-dimethylhydrazine transformations in the presence of sulfur allows one to confirm and, in ceratin cases, make more exact the results of their gas chromatography-mass spectrometry identificat
Comparative analysis of the olfactory properties of silicon/germanium/tin analogues of the lily-of-the-valley odorants lilial and bourgeonal
D?rrich, Steffen,Gelis, Lian,Wolf, Steffen,Sunderk?tter, Astrid,Mahler, Christoph,Guschina, Elena,Tacke, Reinhold,Hatt, Hanns,Kraft, Philip
, p. 1747 - 1752 (2015/02/02)
The silicon/germanium/tin analogues of the lily-of-the-valley odorants lilial (rac-1a), compounds rac-1b, rac-1c, and rac-1d, and bourgeonal (2a), compounds 2b, 2c, and 2d, were synthesized and characterized for their olfactory properties, including GC-olfactometry studies. Compounds rac-1a-c and 2a-c possess a typical lily-of-the-valley odor, whereas the stanna-analogues rac-1d and 2d, despite some floral aspects, clearly no longer belong to the lily-of-the-valley family. In both series of the carbon/silicon/germanium/tin analogues studied, the lily-of-the-valley odor decreases in the order of carbon2+ imaging. Bourgeonal (2a) showed the highest activation potency, whereas lilial (rac-1a) and sila-bourgeonal (2b) exhibited lower activation potencies. Sila-lilial (rac-1b), germa-lilial (rac-1c), and stanna-lilial (rac-1d), as well as germabourgeonal (2c) and stanna-bourgeonal (2d), did not activate heterologously expressed hOR17-4 at the concentrations tested. The carbon/silicon/germanium/tin switch strategy thus showed that the stanna-derivatives clearly exceeded the molecular dimensions of the odorant receptor(s) responsible for the recognition of lily-of-the-valley odorants, although the receptor affinity was already affected with the sila- and germaanalogues. These data could later be used in the qualitative and quantitative evaluation of computational receptor models.
A novel, one-pot synthesis of α-C-cyanohydrazines in the presence of lithium perchlorate/diethylether solution (5.0 M)
Heydari, Akbar,Baharfar, Robabe,Rezaie, Mohsen,Aslanzadeh, Saied M.
, p. 368 - 369 (2007/10/03)
Condensation of N,N-dimethylhydrazine, an aldehyde in lithium perchlorate/diethylether solution (5.0 M) gave N,N-dimethylhydrazone, which were treated with trimethylsilylcyanide to afford α-C-cyanohydrazine. These compounds are important precursors of nitrogen-substituted reagents.
Reaction of 1,1-dimethylhydrazones with propargyl bromide and 1,3-dibromopropyne
Yelokhina,Nakhmanovich,Karnaukhova,Larina,Lopyrev
, p. 479 - 481 (2007/10/03)
Quaternary salts of 1,1-dimethyl-1-(2-propynyl)hydrazones of acetaldehyde, benzaldehyde, 4-nitrobenzaldehyde, 2-thiophenealdehyde, 4-pyridinecarboxaldehyde and quaternary salts of 1,1-dimethyl-1-(3-bromo-2-propynyl)hydrazones of acetaldehyde and benzaldehyde were synthesized from the corresponding hydrazones, propargyl bromide, and 1,3-dibromopropyne at 20°C or at heating, with no solvent or in ether, acetonitrile, benzene.
The Chemistry of Dinitrogen Residues. Part. 7. Hydrazido(1-)- and N,N-Dimethylhydroxylaminato(1-)-complexes of Titanium(IV)
Hughes, David L.,Jimenez-Tenorio, Manuel,Leigh, G. Jeffery,Walker, David G.
, p. 2389 - 2396 (2007/10/02)
The crystal structures of , , >, and have been determined.They are all very similar, with the hydrazido- (or hydroxylaminato-) residue bound side-on and asymmetrically in the usual way, and an N-N (or N-O) separation indicating a single bond.Some related dithiocarbamato-derivatives have also been characterized.
