Process for the preparation of amides from oximes

摘要

Process for the preparation of amides via the catalytic rearrangement of oximes which comprises putting an oxime in vapour phase in contact with a catalyst selected from a mesoporous silica-alumina having a molar ratio SiO2/Al2O2 of between 20 and 1000, an average pore diameter of between 20 and 100 ANGSTROM and an X-ray diffraction pattern (XRD) from powders which, after calcination, has the deepest reflection at d-spacing of more than 18 ANGSTROM (2&thetas; < 4.9 DEG , CuK alpha radiation).