5161-16-0Relevant academic research and scientific papers
FORMATION OF SULPHUR COMPOUNDS IN THE HYDRODENITROGENATION OF 2-METHYLQUINOLINE, 2-METHYLPIPERIDINE, INDOLE, AND ISOQUINOLINE ON A NICKEL-TUNGSTEN CATALYST IN THE PRESENCE OF HYDROGEN SULPHIDE
Cerny, Mirko,Trka, Antonin
, p. 3413 - 3420 (2007/10/02)
2-Methylquinoline, 2-methylpiperidine, indole, and isoquinoline were subjected to hydrodenitrogenation (HDN) on a sulphidized nickel-tungsten catalyst in an autoclave at 300 and 350 deg C using pure hydrogen or a hydrogen-hydrogen sulphide mixture.The neutral fraction from the HDN of 2-methylquinoline and 2-methylpiperidine contained 40 and 90percent sulphur compounds, respectively.The presence of hydrogen sulphide in the HDN of isoquinoline resulted in an enhanced fraction of the neutral moiety.A reaction mechanism is suggested for the HDN of 2-methylquinoline and 2-methylpiperidine in the presence of hydrogen sulphide, in which the latter contributes to the higher degree of conversion due to the formation of corresponding sulphur compounds.
Heterocyclisation alkylante radicalaire par photolyse de sulfures ethyleniques. III. Photolyse de sulfures de butene-3 yle-1 et hexene-5 yle-1
Bastien, Gerard,Surzur, Jean-Marie
, p. 84 - 88 (2007/10/02)
Photolysis of allyl but-3-en-1-yl sulfide (I) gives the thiolan 3 and the 3-allylthiolan 4 resulting from "forbidden" 5-endotrig cyclization.Photolysis of allyl hex-5-en-1-yl sulfide (III) gives, besides the mixture of six- and seven-membered non-alkylated heterocycles 10 and 11, exclusively the alkylated 2-(but-3-enyl) thian 12.These and other results confirm and generalize the mechanism proposed earlier for the photolytic cyclization of pent-4-enyl sulfides.Photolitic cleavage of unsaturated allyl or benzyl sulfides gives the unsaturated thiyl radical.The unsaturated radical undergoes an intramolecular reversible addition out of the cage.Then the more stable cyclized radical is trapped selectively by the allyl or benzyl radical.
REACTION OF SULFUR HALIDES WITH UNSATURATED COMPOUNDS XV. 2,2'-DICHLORO SULFIDES IN REACTION WITH ORGANOALUMINUM COMPOUNDS
Tolstikov, G. A.,Kantyukova, R. G.,Spirikhin, L. V.
, p. 1210 - 1218 (2007/10/02)
The reaction of 2,2'-dichloro sulfides with organoaluminum compounds was investigated.The reaction leads to dechlorination or alkylation products, depending on the structure of the organoaluminum compounds.It was established that nickel, titanium, and zirconium compounds have catalytic activity and enabled the reactions to occur under milder conditions.The addition of sulfur dichloride to 1-methyl- and 1,5-dimethyl-1,5-cyclooctadienes was investigated, and the rearrangement was followed in the series of 9-thiabicyclononane derivatives.
