Original scientific paper

Some Derivatives of L-Cysteine Aldehyde. An Improved Preparation of S-Benzyl-N-phthaloyl-L-cysteine. Amino Acids XXXI

K. Balenović ; Chemical Institute, Faculty of Science, University of Zagreb, Strossmayerov trg 14 , Zagreb, Croatia, Yugoslavia
N. Bregant ; Chemical Institute, Faculty of Science, University of Zagreb, Strossmayerov trg 14 , Zagreb, Croatia, Yugoslavia
B. Gašpert ; Chemical Institute, Faculty of Science, University of Zagreb, Strossmayerov trg 14 , Zagreb, Croatia, Yugoslavia
I. Jambrešić ; Chemical Institute, Faculty of Science, University of Zagreb, Strossmayerov trg 14 , Zagreb, Croatia, Yugoslavia
V. Tomašić ; Chemical Institute, Faculty of Science, University of Zagreb, Strossmayerov trg 14 , Zagreb, Croatia, Yugoslavia

Abstract

A method for the preparation of S-benzyl-N-phthaloyl-L-cysteine with [a]D -167° is described. According to the previously described procedure for the preparation of racemic S-benzyl-N-phthaloyl-cysteine aldehyd ,
the optically active compound was obtained showing [a]D - 103°. The following new compounds were prepared : S.-benzyl-N-phthaloyl-L-cysteine aldehyde ethylene acetal, S-benzyl-L-cysteine aldehyde ethylene acetal, picrate of S-benzyl-L-cysteine aldehyde ethylene acetal, and 5-benzylthio-4-phthalimidopent-2-enoic acid, the vinylogue of S-benzyl-N-phthaloyl-cysteine.

Keywords

Hrčak ID:

247909

URI

https://hrcak.srce.hr/247909

Publication date:

1.2.1956.

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