Chemoenzymatic Synthesis of Homochiral (<i>R</i>)- and (<i>S</i>)-Karahanaenol from (<i>R</i>)-Limonene
作者:A. Roy
DOI:10.1021/jf990531a
日期:1999.12.1
Terpinolene oxide, a monoterpene belonging to the p-menthane group, is easily derived from naturally abundant (R)-limonene. It was isomerized with montmorillonite clay catalyst to karahanaenone (2,2, 5-trimethylcyclohept-4-en-1-one) by ring enlargement. The enantiomers of the corresponding alcohol, karahanaenol (2,2, 5-trimethylcyclohept-4-en-1- ol), known for their individual organoleptic properties
萜品烯氧化物,属于对-薄荷烷基团的单萜,很容易衍生自天然丰富的(R)-柠檬烯。用蒙脱石粘土催化剂通过扩环将其异构化成卡拉哈农酮(2,2,5-三甲基环庚-4-烯-1-酮)。通过假单胞菌洋葱脂肪酶介导的乙酸酯衍生物的对映体特异性醇解,拆分了相应醇卡拉汉那醇(2,2,5-三甲基环庚-4-烯-1-醇)的对映体。