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N-acyl- and N-alkyl-substituted ethyleneureas

✍ Scribed by Yu. A. Naumov; É. G. Zhelvakova; V. B. Kazbdan; I. D. Dunaeva


Book ID
112329501
Publisher
Springer US
Year
1973
Tongue
English
Weight
294 KB
Volume
9
Category
Article
ISSN
0009-3122

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Rotational barriers about the CÈN bonds of several N-acyl-N-methyl-a-amino acids and their esters R3COÈ N(R4)ÈCR1R2ÈCOOR5, and also N-Boc-protected dipeptides, were determined and the steric e †ects caused by the substituents R1-R5 are discussed by comparing them with the results of MM3 calculations