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ChemInform Abstract: Isocyanates. Part 4. Convenient Phosgene-Free Method for the Synthesis and Derivatization of Enantiopure α-Isocyanato Carboxylic Acid Esters.

✍ Scribed by H.-J. KNOELKER; T. BRAXMEIER

Publisher: John Wiley and Sons
Year: 2010
Weight: 32 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199751096

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✦ Synopsis

1997 cyanic acid and cyanic acid derivatives cyanic acid and cyanic acid derivatives P 0520 51 -096 Isocyanates. Part 4. Convenient Phosgene-Free Method for the Synthesis and Derivatization of Enantiopure α-Isocyanato Carboxylic Acid Esters.

-DMAP-catalyzed isocyanation of chiral α-amino acid esters (I) with dicarbonate (II) affords enantiomerically pure isocyanates (III). They react with benzylamine or benzyl alcohol to give the corresponding ureas or carbamates. -(KNOELKER, H.-

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