Process for preparing 6-hydroxy-2,6-dimethylheptanal and intermediates thereof

摘要

Described is the compound 6-hydroxy-2,6-dimethylheptanal useful in augmenting or enhancing the aroma or taste of foodstuffs, flavoring compositions for foodstuffs, tobacco compositions, flavoring compositions for tobacco, perfume compositions, ingredients for perfume compositions, perfumed articles and ingredients for perfumed articles as well as a process for preparing 6-hydroxy-2,6-dimethylheptanal comprising the steps of: (i) forming a sulfite addition salt of 2,6-dimethyl-5-heptenal by mixing an alkali metal sulfite in boric acid with 2,6-dimethyl-5-heptenal and (ii) hydrating the thus formed 2,6-dimethyl-5-heptenal sulfite addition salt with a hydrating reagent as well as the intermediate which is the sulfite addition salt of 2,6-dimethyl-5-heptenal.