Described is a process for preparing trimethyl and dimethylmethylene propyl polyhydropyran derivatives including compounds defined according to the structure: ##STR1## which defines a mixture wherein in the mixture, in each of the compounds one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines represents a carbon-carbon single bond as well as the compound having the structure: ##STR2## products produced thereby; perfumery uses of such products; process intermediates of such process including compounds defined according to the structures: ##STR3## wherein X represents chloro or bromo.
本发明涉及一种制备三甲基和二甲基亚甲基丙基聚氢
吡喃衍
生物的方法,其中包括根据以下结构定义的化合物:## STR1 ## 定义了一种混合物,在混合物中,每个化合物中的虚线之一是碳-碳双键,每个其他的虚线代表碳-碳单键,以及具有以下结构的化合物:## STR2 ## 由此产生的产品; 这些产品在
香料中的使用; 以及这种过程的过程中间体,包括根据以下结构定义的化合物:## STR3 ## 其中X表示
氯或
溴。