作者:Akiko Jitoe、Toshiya Masuda、Nobuji Nakatani
DOI:10.1016/s0031-9422(00)94994-x
日期:1993.1
isolated from the fresh rhizomes of Zingiber cassumunar along with the two known phenylbutenoid dimers. Their structures were elucidated by spectroscopic and chemical methods. The stereochemistry of these cyclohexene compounds was clarified on the basis of 1H NMR data of their derivatives. The substituted positions for the 3,4-dimethoxystyryl groups of the cyclobutane compound were confirmed from a Cope
两个新的苯基丁烯二聚体,(±)-trans-3-(2,4,5-trimethoxyphenyl)-4-[(E)-3,4-dimethoxystyryl]-cyclohexene 和 cis-1,2-bis[(E) -3,4-二甲氧基苯乙烯基]环丁烷与两种已知的苯丁烯二聚体一起从生姜的新鲜根茎中分离出来。通过光谱和化学方法阐明了它们的结构。这些环己烯化合物的立体化学是根据其衍生物的 1 H NMR 数据阐明的。环丁烷化合物的 3,4-二甲氧基苯乙烯基的取代位置由环丁烷热解中的 Cope 重排产物证实,环丁烷的立体化学由 1 H NMR 证据证实。