中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 4-Isopropyl-7-methyl-1,3-benzdioxol | 72096-95-8 | C11H14O2 | 178.231 |
—— | 7-Isopropyl-4-methyl-1,3-benzdioxol-5-carbaldehyd | 88631-89-4 | C12H14O3 | 206.241 |
3-异丙基-6-甲基邻苯二酚 | 3-isopropyl-6-methyl-1,2-benzenediol | 490-06-2 | C10H14O2 | 166.22 |
We describe the preparation of alkylsubst. benzodioxoles, -dioxane, -dioxepine and dioxocine 2a-e.
The can be subjected to a Vilsmeyer-formylation, yielding the aldehydes 3 a-e.
Treatment of 3 a-e with performic acid leads to the phenoles 4 a-e in a Baeyer-Villiger-Oxidation. Using Zincchloride as a catalyst the chromanes 5 a-j can be obtained by reaction of 4 a-e with either prenylbromide or phthylbromide.