(-)-Methyl Cucurbate and (-)-Methyl Jasmonate by Kinetic Resolution

Autor: Claudia Borm, Ekkehard Winterfeldt
Rok vydání: 2006
Předmět:
Zdroj: Liebigs Annalen. 1996:1209-1212
ISSN: 1099-0690
0947-3440
Popis: The kinetic resolution of a malonate-substituted cyclopentenone gave rise to the formation of an enantiopure Diels-Alder adduct which was converted into methyl dehydrocucurbate 2 by diastereoselective alkylation with (Z)-1-bromo-2-pentene and subsequent borohydride reduction. Selective hydrogenation of 2 with a palladium/calcium carbonate catalyst proved to be a reliable route to (–)-methyl cucurbate (1) the oxidation of which with pyridinium chlorochromate and subsequent treatment with acid afforded (–)-methyl jasmonate (9).
Databáze: OpenAIRE