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N-Monoalkylation of α-Amino Acid Esters under Solid-Liquid PTC Conditions (2000)

Albanese, Domenico ; Landini, Dario ; Lupi, Vittoria ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 2000 (2000), S. 1443-1449

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ISSN: 1434-193X

Keywords: Amino acids ; Alkylations ; Phase-transfer catalysis ; Asymmetric synthesis ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: ---N-(2-Nitrophenylsulfonyl)- (o-NBS-AA-OMe, 4) and N-(4-Nitrophenylsulfonyl)-α-amino acid methyl esters (p-NBS-AA-OMe, 5) were N-alkylated with a variety of alkyl halides 6 under solid-liquid phase-transfer catalysis (SL-PTC) conditions, affording the alkylated products o-NBS-N-R2-AA-OMe 7 and p-NBS-N-R2-AA-OMe 8 in excellent yields without any detectable racemization.

Additional Material: 3 Tab.

Type of Medium: Electronic Resource

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