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- W2103600369 abstract "Aus Aldehyden und Ketonen 1 erhält man mit Kalioisocyanessigsäure-methylester (2) durch Formylaminomethylenierung die am Stickstoff anionisierten N-Formyldehydro-α-aminosäure-methylester 3. Für 3 mit R1 = CH3 und R2 = H ist die baseninduzierte Ringöffnung des 2-Oxazolin-4-carbonsäure-methylesters 5 günstiger. — Durch N-Acylierung von 3, gefolgt von Entformylierung der Zwischenstufen 6, erhält man die N-Acyldehydro-α-aminosäureester 7, die zu den N-Acyldehydro-α-aminosäuren 8 hydrolysierbar sind. N-Acyl Dehydro-α-amino Acids from N-Formyl Dehydro-α-amino Acid Esters On treatment with methyl potassioisocyanoacetate (2), aldehydes and ketones 1 give N-anionized N-formyl dehydro-α-amino acid methyl esters 3. Compound 3 with R1 = CH3, R2 = H is obtained by base induced ring opening of methyl 2-oxazoline-4-carboxylate 5. — Acylation of 3, followed by deformylation of the intermediates 6, yields N-acyl dehydro-α-amino acid methyl esters 7 which can be hydrolyzed to the N-acyl dehydro-α-amino acids 8." @default.
- W2103600369 created "2016-06-24" @default.
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- W2103600369 date "1981-08-21" @default.
- W2103600369 modified "2023-09-27" @default.
- W2103600369 title "N-Acyldehydro-α-aminosäuren ausN-Formyldehydro-α-amino-säure-methylestern" @default.
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- W2103600369 doi "https://doi.org/10.1002/jlac.198119810818" @default.
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