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Appendix

  • Miklos Bodanszky
  • Agnes Bodanszky
Part of the Reactivity and Structure Concepts in Organic Chemistry book series (REACTIVITY, volume 21)

Abstract

The finely powdered dicyclohexylammonium salt of the protected amino acid, (5.1 g, 10 mmol) is added to a two phase system of ethyl acetate (40 ml) and a solution of KHSO4 (2 g, 15 mmol) in water (40 ml) [2]. The mixture is shaken by hand until the dicyclohexylammonium salt is completely dissolved. The aqueous phase is extracted with ethyl acetate (twice, with 10 ml each time). The combined organic layers are washed with water until they are free of sulfate ions, then dried over anhydrous sodium sulfate and evaporated to dryness in vacuo [3].

Keywords

Amino Acid Analysis Active Ester Hydrogen Sulfate Methane Sulfonic Acid Seal Ampoule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • Miklos Bodanszky
    • 1
  • Agnes Bodanszky
    • 1
  1. 1.Department of ChemistryCase Western Reserve UniversityClevelandUSA

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