Process for preparing olefins by metathesis in the presence of a carbide or oxycarbide of tungsten or molybdenum

摘要

Preparation of unsaturated compounds having a non-aromatic C-C double or triple bond (compound A) from another compound or a mixture of other compounds having a non-aromatic C-C double or triple bond (compound B), includes bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at 50-500[deg]C.