Asymmetric nitrogen. 68. Geminal systems. 42. Diastereomeric NH-dialkoxyamines with an asymmetric nitrogen atom in an open chain

1988 ◽  
Vol 37 (12) ◽  
pp. 2513-2516
Author(s):  
V. F. Rudchenko ◽  
I. I. Cher'vin ◽  
V. N. Voznesenskii ◽  
V. S. Nosova ◽  
R. G. Kostyanovskii
Keyword(s):  
Nitrogen Atom ◽  
Open Chain ◽  
Asymmetric Nitrogen

ChemInform Abstract: Asymmetric Nitrogen. Part 68. Geminal Systems. Part 42. A Diastereomeric NH-Dialkoxyamine with an Asymmetric Nitrogen Atom in an Open Chain.

ChemInform ◽  
1989 ◽  
Vol 20 (31) ◽  
Author(s):  
V. F. RUDCHENKO ◽  
I. I. CHERVIN ◽  
V. N. VOZNESENSKII ◽  
V. S. NOSOVA ◽  
R. G. KOSTYANOVSKII
Keyword(s):  
Nitrogen Atom ◽  
Open Chain ◽  
Asymmetric Nitrogen

Chemical shift non-equivalence of methylene protons adjacent to an asymmetric nitrogen atom

1971 ◽  
Vol 3 (2) ◽  
pp. 249-253 ◽  
Author(s):  
A. Vigevani ◽  
B. Gioia ◽  
B. Cavalleri ◽  
G. G. Gallo
Keyword(s):  
Chemical Shift ◽  
Nitrogen Atom ◽  
Asymmetric Nitrogen

ChemInform Abstract: Asymmetric Nitrogen. Part 52. Nucleophilic Substitution at the Nitrogen Atom of N-Chloro-N-alkoxyamides.

ChemInform ◽  
1987 ◽  
Vol 18 (15) ◽  
Author(s):  
V. F. RUDCHENKO ◽  
S. M. UGNOTOV ◽  
V. S. NOSOVA ◽  
I. I. CHERVIN ◽  
R. G. KOSTYANOVSKII
Keyword(s):  
Nitrogen Atom ◽  
Nucleophilic Substitution ◽  
Asymmetric Nitrogen

N-ACYLATED AMINO ACID IMINO CHLORIDES AND A QUALITATIVE STUDY OF RING CLOSURE AMONG N-ACYLAMINO ACID CHLORIDES

1957 ◽  
Vol 35 (9) ◽  
pp. 1031-1038 ◽  
Author(s):  
Edward Ronwin
Keyword(s):  
Amino Acid ◽  
Nitrogen Atom ◽  
Ring Closure ◽  
Acid Chlorides ◽  
Reaction Intermediates ◽  
Open Chain ◽  
Imino Acid ◽  
Infrared Spectral ◽  
Salt Forms ◽  
Predominant Product

Products have been isolated from the treatment of N-acylaminoacetonitriles with dry hydrogen chloride which are either the open-chain imino acid chlorides or the dissociated salt forms. These compound types have often been postulated as reaction intermediates but never isolated with an unsubstituted nitrogen atom. In the unsubstituted condition they are analogous to regular or oxygen acid chlorides.Several N-acylamino acids were treated with PCl5 and the reaction solutions were subjected to infrared spectral analyses. The results indicate that the open-chain acid chloride, rather than the azlactone salt, is the predominant product obtained with the compounds used in this investigation.

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