Synthesis and plant growth inhibitory activities of (+)- and (−)-(2Z,4E)-5-(1′,2′-epoxy-2′,6′,6′-trimethylcyclohexyl)-3-methyl-2,4-pentadienoic acid☆
作者:T ORITANI、K YAMASHITA
DOI:10.1016/0031-9422(83)80010-7
日期:——
Abstract Chiral (+)- and (−)-enantiomers of (2Z,4E)-5-(1′,2′-epoxy-2′,6′,6′-trimethylcyclohexyl)-3-methyl-2,4-pentadienoic acid have been synthesized from the chiral epoxy alcohols (+)- and (−)-1′,2′-dihydro-1′,2′-epoxy-β-ionone, which were prepared by Katsuki-Sharpless' asymmetric epoxidation of β-cyclogeraniol. The (+)-enantiomer showed strong inhibitory activity in a rice seedling and lettuce germination
摘要 (2Z,4E)-5-(1',2'-epoxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-的手性(+)-和(-)-对映异构体戊二烯酸是由手性环氧醇 (+)- 和 (-)-1',2'-dihydro-1',2'-epoxy-β-ionone 合成的,它们是通过 Katsuki-Sharpless 的不对称环氧化反应制备的β-环香叶醇。(+)-对映异构体在水稻幼苗和生菜发芽试验中显示出很强的抑制活性,而 (-)-对映异构体的活性低 103 倍。