FIELD: chemistry.
SUBSTANCE: invention refers to cis/trans-citral and (iso)piperitenole processes to be then used in perfumery, household chemicals, vitamin synthesis. The process involves isomerisation of cis-trans verbenol in supercritical lower alcoholic vehicles (C1-C3) at temperature 420°C and lower. As a rule, supercritical lower alcoholic vehicles include supercritical methyl or ethyl alcohol, or supercritical 1-propanol. Commonly thermal isomerisation is ensured at temperature 280-420°C and pressure 100-120 atm.
EFFECT: high yield end products with controlled selectivity and high reaction time.
6 cl, 1 tbl, 2 dwg, 3 ex
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