The Photolysis of trans-Isohumulone to Dehydrohumulinic Acid, a Key Route to the Development of Sunstruck Flavour in Beer
trans-Isohumulone (2) is photolysed to dehydrohumulonic acid (5) by a Norrish type 1 cleavage, affording a precursor of 3-methylbut-2-ene-1-thiol, the compound responsible for the sunstruck flavour of beer.
Bondeel, Georges M. A.,Keukeleire, Denis De,Verzele, Maurice
p. 2715 - 2719
(2007/10/02)
BICYCLIC ISOMERIZATION PRODUCTS OF HUMULONE
The humulone isomerization mixture is investigated by means of efficient preparative High Performance Liquid Chromatography.New bicyclic humulone isomers are isolated and identified (8 and 10 in fig.1).
Velde, M. Van de,Keukeleire, D. De,Bruyn, A. De,Verzele, M.