Sesquiterpenoid tetrahydrofuran derivatives (I) as isolated compounds or in the form of mixtures, process and starting materials (V) for their preparation, application of (I) as perfumes and/or flavors and perfume and/or flavor compositions with an amount of (I)

摘要

As Einzelverindungen or in the form of mixtures present, odorant and / or flavoring agents representing compounds of the general formula wherein one of the dashed lines represents an additional bond, are obtained by the method described -in its manufacture - new starting material 2-methyl-2-vinyl-5- (1'-hydroxy (or acyloxyl-1 ', 5' -dimetnyl- hex-4'-en-1'-yl) -tetrahydrofuran of the formula wherein R is hydroxy or acyloxy group, is dehydrated (for the case of R is hydroxy;., for example, with POCl, in pyridine) or deacylated (for the case where R is acyloxy;., for example, the compound V wherein R is acetoxy by pyrolysis at 400 ° C). The Verbin compounds I in the form of individual isomers and their mixture are new, with the exception of naturally occurring mixture, they are characterized by a fresh, fruity, reminiscent of Apie bulbs and young plants buds smell aes