A synthetic approach to (+)-aldosterone and its relatives (2)- a stereoselective synthesis of (+)--4,5-(4-methoxybenzo)- 1β , 7aβ - ( 2α-methoxymethyl- 5 -oxofuro) hydrindane
作者:Hideo Nemoto、Mitsuo Nagai、Keiichiro Fukumoto、Tetsuji Kametani
DOI:10.1016/s0040-4020(01)96631-1
日期:1985.1
A stereoselectivity in an intramolecular cycloaddition of the olefinic -quinodimethanes 13 and 23 generated from the thermolysis of optically active 4β-[2-(4-methoxybenzocyclobutenyl)ethyl] -5α-methoxymethyl-3-phenyl-thio-methylenefuran-2-ones 12 and 22, respectively, is studied and a stereoselective synthesis of (+)--4,5-( 4-methoxybenzo) -1β,7aβ-(2α-methoxymethyl-5-oxofuro)hydrindane 1 is also described
由光学活性4β-[2-(2-(4-甲氧基苯并环丁烯基)乙基]-5α-甲氧基甲基-3-苯基-硫代-亚甲基呋喃-2-酮12的热分解生成的烯烃-喹二甲烷13和23的分子内环加成中的立体选择性分别研究了图22和图22,并且还描述了(+)-- 4,5-(4-甲氧基苯并)-1β,7aβ-(2α-甲氧基甲基-5-氧代呋喃)氢化茚1的立体选择性合成。