Autor: |
Chel'tsova, G. V., Karpeiskaya, E. I., Klabunovskii, E. I. |
Zdroj: |
Russian Chemical Bulletin; October 1981, Vol. 30 Issue: 10 p1934-1937, 4p |
Abstrakt: |
1.In the reaction of 4-isopropylideneoxazolones with S-(-)-a-phenylethylamine and hydrogen in the presence of a Pd catalyst in dimethoxyethane,a-phenylethylamide of N-benzoyl- or N-acetylvaline is obtained, preferentially in the SS-configuration, the N-acetyl derivative being formed with a higher stereoselectivity.2.The reductive aminolysis process proceeds in the sphere of the catalytic complex, bypassing the stages of the formation of both unsaturated amide and saturated azlactone. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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