含有十元碳环系统并具有独特双键分布的Costunolide经历了许多有趣的转变。通过在金属胺还原时将氢化四氢锂的氢化铝锂还原制备的二醇得到烃,C 15 H 26,仲醇,C 15 H 26 O和伯醇,C 15 H 26 O和伯醇,C 15 H 26在光谱数据的基础上,将结构VIII,X和XII分配给O,然后将它们转化为热解的榄香烯型产物,以及在酸催化的环化反应中转化为单烯类双环产物。仲醇X已被转化为d-junenol,它构成了由木香酚合成醇的新方法。还已经描述了12-甲氧基二氢木香内酯的热解和酸催化的环化。
含有十元碳环系统并具有独特双键分布的Costunolide经历了许多有趣的转变。通过在金属胺还原时将氢化四氢锂的氢化铝锂还原制备的二醇得到烃,C 15 H 26,仲醇,C 15 H 26 O和伯醇,C 15 H 26 O和伯醇,C 15 H 26在光谱数据的基础上,将结构VIII,X和XII分配给O,然后将它们转化为热解的榄香烯型产物,以及在酸催化的环化反应中转化为单烯类双环产物。仲醇X已被转化为d-junenol,它构成了由木香酚合成醇的新方法。还已经描述了12-甲氧基二氢木香内酯的热解和酸催化的环化。
Five new sesquiterpenes were isolated from Acorus calamus L., in addition to calameone (or calamendiol), the structure of which was revised, and their structures were established. Furthermore, chemical co-relation among these sesquiterpenes was carried out. In particular, the thermal isomerization of shyobunone (I), an elemene-type sesquiterpene, to preisocalamendiol (VI), a germacrone-type compound