Asymmetric synthesis of amino acids by catalytic reduction of azlactones of substituted acylaminoacrylic acids. 23. Study of the reductive aminolysis of 2-methyl-4-benzyllidene-δ2-oxazolin-5-one with the chiral catalytic system pd-s-aminoalcohol |
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| Authors: | G V Chel'tsova E I Karpeiskaya E I Klabunovskii |
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| Institution: | 1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow
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| Abstract: | | 1. |
Reductive aminolysis of 2-methyl-4-benzylidene- 2-oxazolin-5-one in the chiral catalytic system PdCl2-S-phenylglycinol results in the formation of phenylalanine amides with an excess of the SS-diastereomer.
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Reductive aminolysis in the catalytic system PdCl2-S-phenylalaninol mainly gives phenylalanine amides with an excess of the RS-diasteromer.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1119–1123, May, 1989. |
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