| abstract |
The subject of the invention is a catalyst comprising a support based on alumina or silica or silica-alumina, at least one element from group VIII, at least one element from group VIB, and an organic compound of formula (I) in which X is chosen from a methylene group CH2 or a carbonyl group C = O, n is chosen from 1 and 2, and when n = 1, R1 is chosen from a hydrogen atom, a methyl group, an acetyl group and a vinyl group, and when n = 2, R1 is then chosen from a methyl group, an acetyl group and a vinyl group, and R2 and R3 are chosen from a hydrogen atom and a methyl group. |