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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Affiliation: | 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. | 2. | Reductive aminolysis in the catalytic system PdCl2-S-phenylalaninol mainly gives phenylalanine amides with an excess of the RS-diasteromer. | Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1119–1123, May, 1989. |
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