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Pyrolysen‐ und Hydrierungsversuche in der Elemol‐ und Dihydrogeijeren‐Reihe
Author(s) -
Ganter C.,
KellerWojtkiewicz Frau B.
Publication year - 1971
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.19710540117
Subject(s) - chemistry , pyrolysis , organic chemistry , benzoic acid
1 The pyrolysis of elemol ( 1 ) in the presence of benzoic or p ‐nitrobenzoic acid, and of elemyl‐ p ‐nitrobenzoate ( 3 ) was studied. From the many products formed, the compounds 6, 7, 8, 10, 11, 14, 15 and 18 were isolated and identified. On the basis of systematic experiments in the elemol ( 1 ) and dihydrogeijerene ( 26 ) series the sequence of the formation of these products could be determined. Several factors influencing the compositions of the pyrolysis mixtures are discussed. 2 The products of pyrolysis of both series [elemol ( 1 ) and dihydrogeijerene ( 26 ), respectively] were catalytically hydrogenated, yielding the saturated hydrocarbons 34, 35–37 , and 38–40 , respectively. 3 The synthesis of racemic dihydrogeijerene ( 26 ) was achieved starting from germacrone ( 41 ).