NMR‐Untersuchungen zur Struktur von substituierten 3‐Aminoacrylsäureestern | Zendy

Neidlein Richard | Zendy; Kikelj Danijel | Zendy; Kramer Walter | Zendy; Spraul Manfred | Zendy

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NMR‐Untersuchungen zur Struktur von substituierten 3‐Aminoacrylsäureestern

Author(s) -

Neidlein Richard,

Kikelj Danijel,

Kramer Walter,

Spraul Manfred

Publication year - 1988

Publication title -

chemische berichte

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 0009-2940

DOI - 10.1002/cber.19881210928

Subject(s) - chemistry , tautomer , enamine , intramolecular force , hydrogen bond , stereochemistry , medicinal chemistry , molecule , organic chemistry , catalysis

NMR Investigations on the Structure of Substituted 3‐Aminoacrylic Esters 3‐Amino‐2‐cyano‐3‐methoxyacrylate 1 and 3‐amino‐3‐chloro‐2‐cyanoacrylate 2 exist in the E configuration ( 1a, 2a ), which is stabilized by intramolecular hydrogen bonds. 1 J ( 15 N, 1 H)‐coupling constants give no evidence for an equilibrium between enamine‐ ( 1a, 2a ) and imino semiacetal ( 1b, 2b ) tautomers.

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