Effenberger, FranzNiesert, Claus-PeterKühlwein, JürgenZiegler, Thomas2009-07-302016-03-312009-07-302016-03-311988316097551http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-43471http://elib.uni-stuttgart.de/handle/11682/1122http://dx.doi.org/10.18419/opus-1105α-Azidocarboxylic acids 1 react with phosgene in the presence of catalytic amounts of sodium perrhenate in dimethoxyethane at 85°C to give N-carboxy-α,β-didehydroamino acid anhydrides (4-alkylidene-2.5-oxazolidinediones) 2 in good yields.deinfo:eu-repo/semantics/openAccessAminosäuren540Eine einfache Synthese von N-Carboxy-α,β-didehydro-α-aminosäure-anhydriden (4-Alkyliden-2,5-oxazolidindionen) (Aminosäuren ; 10)A versatile synthesis of N-Carboxy-α,β-didehydro-α-amino acid anhydrides (4-Alkylidene-2,5-oxazolidinediones)article2013-06-11