Premium
MAGNESIUM ION CATALYSED ISOMERIZATION OF HUMULONE: A NEW ROUTE TO PURE ISOHUMULONES *
Author(s) -
Köller Horst
Publication year - 1969
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1969.tb03197.x
Subject(s) - isomerization , chemistry , magnesium , ion , catalysis , organic chemistry
Magnesium ion catalysed isomerization of humulone leads to a mixture of two stereo‐isomeric isohumulones without detectable formation of side‐products or degradation products. Catalytically‐produced isohumulone consists of 45 ± 4% cisisohumulone (colourless crystals m.p. 64° C; [α] 20 D =‐8·9°) and of 55 ± 4% trans‐isohumulone (yellow oil).