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Asymmetric Synthesis of Carboranyl Amino Acids with Potential use in BNCT (1995)

Sjöberg, Stefan ; Hawthorne, M. Frederick ; Wilmouth, Serge ; [weitere]

Weinheim : Wiley-Blackwell

Chemistry - A European Journal 1 (1995), S. 430-435

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Details

ISSN: 0947-6539

Schlagwort(e): amino acids ; asymmetric synthesis ; BNCT ; carboranes ; Chemistry ; General Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Two α-amino acids containing the 1,2-dicarba-closo-dodecaborane (12) cage, namely, 5-(1,2-dicarba-closo-dodecaboran (12)-1-yl)-2-aminopentanoic acid (1) and 5-(2-methyl-1,2-dicarba-closo-dodecaboran (12)-1-yl)-2-aminopentanoic acid (2), were prepared by asymmetric synthesis (e.p. 〉 98%) by using the chiral glycine equivalent, imidazolidinone 3, introduced by Seebach, and Oppolzer's camphor-derived sultam derivative 4. The dextrorotatory enantiomers (sodium D line in methanol) of the amino acids 1 and 2 were both shown to have (S) configuration.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/chem.19950010707

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