Condensation of pyridone 6 with enal 25 using DMAP in EtOH at 150 degreesC afforded 8% of the desired Diels-Alder adduct 22, 8% of the bridged adduct 36 and 1-2% of a partially pure cis-fused adduct 37 of unknown stereochemistry. Hydroxylation of 22 completed a short synthesis of fusaricide (1).
Condensation of pyridone 6 with enal 25 using DMAP in EtOH at 150 degreesC afforded 8% of the desired Diels-Alder adduct 22, 8% of the bridged adduct 36 and 1-2% of a partially pure cis-fused adduct 37 of unknown stereochemistry. Hydroxylation of 22 completed a short synthesis of fusaricide (1).
[EN] PROCESS FOR THE PREPARATION OF ALCOHOLS FROM ALFA,BETA-UNSATURATED ALDEHYDES AND KETONES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ALCOOLS À PARTIR D'ALDÉHYDES ET DE CÉTONES ALPHA,BÊTA-INSATURÉS
申请人:GIVAUDAN SA
公开号:WO2017212069A1
公开(公告)日:2017-12-14
A chemoselective process for producing alcohols from α,β-unsaturated aldehydes and ketones is described.