Heterogene Gasphasen‐Eliminierungen mit dem System Magnesiumoxid/Kalium | Zendy

Maier Günther | Zendy; Weber Claudia | Zendy

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Heterogene Gasphasen‐Eliminierungen mit dem System Magnesiumoxid/Kalium

Author(s) -

Maier Günther,

Weber Claudia

Publication year - 1994

Publication title -

chemische berichte

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 0009-2940

DOI - 10.1002/cber.19941271227

Subject(s) - chemistry , dehydrogenation , magnesium , reagent , potassium , benzene , condensation , inorganic chemistry , oxide , cyclohexene , evaporation , medicinal chemistry , photochemistry , organic chemistry , catalysis , physics , thermodynamics

Heterogeneous Gasphase Eliminations with the System Magnesium Oxide/Potassium After evaporation of potassium and condensation on a magnesium oxide surface a highly reactive blue reagent is formed which is active in dehydrogenation reactions. 1,4‐Cyclo‐hexadiene ( 1 ) and 1,3‐cyclohexadiene ( 2 ) can effectively be converted into benzene at room temperature while dehydrogenation of cyclohexene 3 needs temperatures higher than 200°C. The reaction mechanism is discussed. Debrominations with MgO/K can likewise be carried out under rather mild conditions.

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