[EN] ENANTIOSELECTIVE PROCESS FOR THE PREPARATION OF METHYL DIHYDROEPIJASMONATE [FR] PROCEDE ENANTIOSELECTIF DE PREPARATION DE DIHYDROEPIJASMONATE DE METHYLE
[EN] ENANTIOSELECTIVE PROCESS FOR THE PREPARATION OF METHYL DIHYDROEPIJASMONATE<br/>[FR] PROCEDE ENANTIOSELECTIF DE PREPARATION DE DIHYDROEPIJASMONATE DE METHYLE
申请人:UNIV PAVIA
公开号:WO2004108652A3
公开(公告)日:2005-03-24
A General Enantioselective Approach to Jasmonoid Fragrances: Synthesis of (+)-(1<i>R</i>,2<i>S</i>)-Methyl Dihydrojasmonate and (+)-(1<i>R</i>,2<i>S</i>)-Magnolione
作者:Alessio Porta、Giovanni Vidari、Giuseppe Zanoni
DOI:10.1021/jo050423p
日期:2005.6.1
Methyl dihydrojasmonate 1 and magnolione 3 are of both academic and industrial interest. In this paper, we describe a flexible, high-yielding route to diastereomerically pure (+)-cis-(1R,2S)-methyl dihydrojasmonate 1 and the first synthesis of (+)-cis-(1R,2S)-magnolione 3, both with enantiomeric excesses up to 93%. The two syntheses diverged from the same advanced intermediate 5, readily available