作者:Helmut Guth
DOI:10.1002/hlca.19960790606
日期:1996.9.18
coconut-like smelling odorant 1, named ‘wine lactone’, was isolated from different wine varieties. The chemical structure of this compound, which has not yet been detected in wine or a food, was identified by high-resolution mass spectrometry (HR-MS) as 3a,4,5,7a-tetrahydro-3,6-dimethylbenzofuran-2(3H)-one. For the evaluation of the configuration of wine lactone, stereochemically controlled syntheses
从不同的葡萄酒品种中分离出强烈的甜味和类似椰子的香气,称为“葡萄酒内酯” 1。尚未在葡萄酒或食品中检测到的该化合物的化学结构通过高分辨率质谱(HR-MS)鉴定为3a,4,5,7a-四氢-3,6-二甲基苯并呋喃-2 (3 H)-一。为了评估葡萄酒内酯的构型,开发了立体化学控制的合成方法。通过NMR,MS,IR和CD测量对所有八个异构体进行了表征。“葡萄酒内酯”的构型与合成的(3 S,3a S,7a R)-对映异构体(1a)的基础上进行对映选择性GC。对于该异构体,检测到最低的气味阈值(0.02 pg / 1空气)。