作者:Seiji Yamaguchi、Mayumi Takai、Isao Hanazome、Yûko Okada、Yoshiyuki Kawase
DOI:10.1246/bcsj.60.3603
日期:1987.10
One step cyclization of 2′,4′,6′-trihydroxyacetophenone with 1,4-dibromo-2-methyl-2-butene gave two 2-isopropenyl-2,3-dihydrobenzofuran-4,6-diols and a new 3-methyl-2,5-dihydro-1-benzoxepin-6,8-diol. The structure of natural remirol was confirmed by comparison with monomethylated compounds of the former products. Racemic remirol was synthesized from 3,5-dimethoxyphenol in three steps.
2′,4′,6′-三羟基醋ophenone与1,4-二溴-2-甲基-2-丁烯的一步环化反应生成了两种2-异丙烯基-2,3-二氢苯并呋喃-4,6-二醇和一种新的3-甲基-2,5-二氢-1-苯并氧杂环-6,8-二醇。通过与前者产品的单甲基化化合物的比较,确认了天然remirol的结构。外消旋remirol是从3,5-二甲氧基苯酚经过三步合成的。