Enantioselective preparation of 1-hydroxy neoisopulegol and 1-hydroxy neoisomenthol
作者:Abdellatif Fkyerat、Raffaele Tabacchi
DOI:10.1016/s0957-4166(97)00222-x
日期:1997.7
steps starting from geraniol. Their enantiomers (1S,3S,4S)-1-hydroxy isopulegol 5 and (1R,3S,4R)-1-hydroxy neoisopulegol 5 were prepared analogously. These compounds were converted to 1-hydroxy neoisomenthol 7, 8 and 1-hydroxy isomenthol 9, 10. Most of these compounds possess an organoleptic property.
阿对映选择性过程为(1制备中所述- [R,3 - [R,4 - [R)-1-羟基异胡薄荷醇3和(1 - [R,3小号,4 - [R)-1-羟基neoisopulegol 4在从香叶醇开始4个步骤。其对映体(1小号,3小号,4小号)-1-羟基异胡薄荷醇5和(1 - [R,3小号,4 - [R)-1-羟基neoisopulegol 5类似地制备。这些化合物被转化为1-羟基新异薄荷醇7、8和1-羟基异薄荷醇9、10。这些化合物大多数具有感官特性。