Synthesis of (+)-drim-9(11)-en-8 -ol from sclareol
作者:P. F. Vlad、A. N. Aryku、A. G. Chokyrlan
DOI:10.1023/b:rucb.0000030822.72251.ea
日期:2004.2
A drimane-type sesquiterpenoid, (+)-drim-9(11)-en-8α-ol, was synthesized from sclareol in four steps. The ozonolysis product of sclareol diacetate reacts with Cu(OAc)2·H2O to give 8α-acetoxy-14,15-bisnorlabdan-13-one. Photolysis of this compound followed by alkaline hydrolysis results in the target compound belonging to the normal steric series. (+)-Drim-9(11)-en-8α-ol acetate is highly unstable and
Degradation of the Side Chain of (−)‐Sclareol: A Very Short Synthesis of <i>nor</i>‐Ambreinolide and Ambrox
作者:A. F. Barrero、E. J. Alvarez‐Manzaneda、R. Chahboun、A. F. Arteaga
DOI:10.1081/scc-200031056
日期:2004.1.1
Abstract The synthesis of nor‐Ambreinolide (8) from (‐)‐sclareol (1) was carried out by treatment with KMnO4‐Ac2O and further alkaline hydrolysis. 8 was directly transformed into (‐)‐ambrox (11) by reduction with metal borohydride in the presence of Lewis acids.