Turmerones: isolation from turmeric and their structure determination
Abstract
The presence of two turmerones in turmeric is demonstrated and their structures are defined as 2-methyl-6-(4-methylcyclohexa-2,4-dien-1-yl)hept-2-en-4-one (5, ‘α-turmerone’) and 2-methyl-6-(4-methylenecyclohex-2-en-1-yl)hept-2-en-4-one (2, ‘β-turmerone’).