The new aromatic compound, the manufacturing method, to improve the scent constituent or the perfume addition product, and the aromatic property which contain the said chemical compound, intermediate field null of manner and the said chemical compound it emphasizes or alteration, or

摘要

Compounds of formula …IMAGE… are described, in which … …  a) the values m and n are identical and each defines a whole number of value 0, the symbols R1 and R2 are identical and each denotes a hydrogen atom, or are different and each denotes a hydrogen atom or a methyl radical, each of the symbols R5 and R8 denotes a methyl radical, each of the symbols R6 and R7, which are identical or different, denotes a hydrogen atom or a methyl radical, and either the symbol R4 denotes a methyl radical and the symbol R3 a hydrogen atom or a methyl radical, or each of the symbols R3 and R4 denotes a methylene radical forming part of a ring as shown by the dotted line, the following combinations being, however, excluded: … …  1. R1 = R2 = R3 = R6 = R7 = H, or …  2. R1 = R2 = R3 = H and R6 or R7 = CH3, or …  3. R2 = CH3 and R3 = R6 = R7 = H, or …  4. R2 = CH3 and R3 = H and R6 or R7 = CH3, or …  5. R1 = R3 = CH3, or …  6. R3 = R4 = CH2 and R6 or R7CH3; or in which … …  b) the values m and n are different and each denotes a whole number of value 0 or 1, the symbol R2 denotes a hydrogen atom or a methyl radical, each of the symbols R1 and R3 denotes a hydrogen atom, the symbol R4 denotes a methyl radical and either the symbols R5 and R6 are identical (n = 1) and each denotes a methylene radical forming part of a ring as shown by the dotted line, the symbol R7 denoting a hydrogen atom and the symbol R8 a methyl radical, or the symbol R5 denotes a methyl radical and the symbol R6 a hydrogen atom, the symbols R7 and R8 then being identical (m = 1) and each denoting a methylene radical forming part of a ring as shown by the dotted line; or any mixture of two or more structural isomers of formula (I). … …??These compounds develop musky notes and can as a result be employed as active ingredients in perfuming compositions and scented articles. …??A process for the preparation of the compounds of formula (I) is also described.