4291-80-9Relevant articles and documents
TRANSFORMATION OF QUINOLINES AND ANILINES OVER NiMo-Al2O3 CATALYSTS
Perot, G.,Brunet, S.,Canaff, C.,Toulhoat, H.
, p. 865 - 870 (2007/10/02)
The decomposition of nitrogen-containing compounds: 1,2,3,4-tetrahydroquinoline, 6-methylquinoline, decahydroquinoline, orthopropylaniline and 2,6-diethyl,1-aniline, was studied at 623 K, 7 MPa in a continuous flow microreactor over two commercial nickel-molybdenum-alumina catalysts, (HR346 and HR348, Procatalyse).Decahydroquinoline was found to react very rapidly under the conditions of 1,2,3,4-tetrahydroquinoline hydrodenitrogenation.The simultaneous transformations of quinoline and aniline showed that the aniline transformation was inhibited by the quinolines.However the inhibiting effect was much less significant with HR348 which also happens to be more active in aniline transformation.
Alkynes and Cumulenes, XIV. - Thermal and Photochemical Dimerization of 1,2,4-Pentatriene (Vinylallene)
Schneider, Ralf,Siegel, Herbert,Hopf, Henning
, p. 1812 - 1825 (2007/10/02)
On heating at 170 degC in the gas phase 1,2,4-pentatriene (1) dimerizes to the six-membered hydrocarbons 2, 5, and 13, to the eight-membered ring hydrocarbons 8 and 18 as well as to the tetrahydronaphthalene 16; in a side reaction 1 cycloisomerizes to 3-methylene-1-cyclobutene (11).The C10H12-hydrocarbons are very likely produced via diradical intermediates, only 2, 5, and 13 being primary products.On the other hand, for the dimers 8, 16, and 18 reasonable electrocyclic reaction paths may be postulated.The sensitized photodimerization of 1 leads to the cyclobutane derivatives 31, 33, 35 and to 28 as a thermally produced secondary product from 33.The exclusive cyclobutane formation suggests that 1 behaves analogously to 1,3-butadiene in sensitized photodimerizations.