Synthesis and Optical Resolution of the Floral Odorant (±)-2,3-Dihydro-2,5-dimethyl-1H-indene-2-methanol, and Preparation of Analogues
作者:Christian Vial、Gérald Bernardinelli、Philippe Schneider、Michael Aizenberg、Béat Winter
DOI:10.1002/hlca.200590250
日期:2005.12
(±)-1, a recently discovered, valuable, floral-type odorant, has been synthesized by a straightforward procedure (Scheme 1). To determine the properties of the enantiomers of 1, their separation by preparative HPLC and the determination of their absolute configuration by X-ray crystallography were carried out (Figure). Furthermore, the analogues 2–6 were synthesized, either from differently methylated
标题化合物(±)-1是最近发现的,有价值的花香型增香剂,已通过简单的方法合成(方案1)。为了确定1的对映异构体的性质,进行了制备型HPLC分离和X射线晶体学测定其绝对构型(图)。此外,类似物2 - 6合成,或者从不同的甲基化的2-甲基茚-1-酮(方案2和3),或在2,4,6-三甲基化的同系物的情况下6,通过一个完全不同的合成方法(方案4)。对(+)-(S)-1,(-)-(R)-1和(±)-1的评估显示,气味方面仅有微小差异(表)。