| 摘要 |
PROBLEM TO BE SOLVED: To obtain a new compound which is at least same as a well-known mixture of 2,4,6-trimethyl-4-phenyl-1,3-dioxane isomers in the aromatic characteristics or useful as a perfume which strongly smells than the mixture as much as possible. SOLUTION: This (2RS, 4SR, 6X)-2,4,6-trimethyl-4-phenyl-1,3-dioxane is represented by formula I (X is RS) or formula II (X is SR). The compound of formula I is obtained by treating, e.g. a mixture of (2RS, 4SR, 6RS)-2,4,6- trimethyl-4-phenyl-1,3-dioxane with (2RS, 4RS, 6RS)-2,4,6-trimethyl-4-phenyl-1,3- dioxane with an acid, preferably Broensted acid at 20-30 deg.C.
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