作者:G.D. Joshi、M.V. Kadival、S.N. Kulkarni、S.C. Bhattacharyya
DOI:10.1016/s0040-4020(01)82602-8
日期:1967.1
santanolide ‘C’. By a similar series of reactions 8-β-hydroxyeudesmol (XIV) prepared by LAH reduction of eudesman-8-one (XIII) gives tetrahydroalantalactone (IV) and the lactone of 8-β-hydroxyeudesman-15-oic acid (V), in which the lactone V predominates. The dihydrojunenone mixture (XVI), obtained in our earlier work,10 on equilibration with alkali followed by extensive chromatography, affords pure dihydrojunenone
在氢硼酸化氧化作用下,通过苯甲酸氢二乙酯(VI)的热解反应制得的二氢辛烯(VII)产生四氢肋(VIII,R = CH 2 OH)。VIII的四乙酸铅氧化可得到氧化物(IX),将其纯化并在乙酸中用铬酸氧化可得到三醇内酯'C'。通过类似的一系列反应,通过LAH还原udesman-8-one(XIII)制备的8-β-hydroxyeudesmol(XIV)得到四氢丙二内酯(IV)和8-β-hydroxyeudesman-15-oicacid(V)的内酯,其中内酯V占主导地位。在我们较早的工作中获得的二氢junenone混合物(XVI),先用碱平衡,然后再进行大量色谱分离,得到10,得到纯的二氢junenone(XVII)。已经讨论了各种产品的立体化学。