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Transpositions de doubles liaisons de p ‐menthènes et de p ‐menthadiènes catalysées par des bases
Author(s) -
Ferro Alberto,
Naves YvesRené
Publication year - 1974
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19740570422
Subject(s) - chemistry , dehydrogenation , isomerization , catalysis , medicinal chemistry , potassium , xylene , diamine , photochemistry , organic chemistry , toluene
The displacements of double bonds by basic catalysts (N‐lithioethylene diamine with an excess of ethylene diamine, potassium t ‐butylate in dimethylsulfoxide, benzyl‐sodium in boiling xylene) are studied on p ‐menthenes and p ‐menthadienes. The isomerizations of p ‐menthadienes are accompanied by dehydrogenation. A representative mechanism of isomerization and dehydrogenation according to the catalyst is proposed for limonene.