C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/33 (2006.01) C07D 307/60 (2006.01) C07D 307/66 (2006.01)
Patent
CA 2367610
A process for the preparation of enantiomer- enriched aminofuranones and hydroxyfuranones in which an enantiomer-enriched cyanohydrin is acylated by an acylating agent, then cyclized at 40 to 90°C in the presence of zinc or a zinc compound to the corresponding enantiomer-enriched aminofuranone, which is converted where appropriate by acid hydrolysis into the corresponding enantiomer-enriched hydroxyfuranone.
Mayrhofer Herbert
Pochlauer Peter
Riebel Peter
Wirth Irma
Dsm Fine Chemicals Austria Nfg Gmbh & Co Kg
Riches Mckenzie & Herbert Llp
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