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Acta Crystallogr B Struct Sci Cryst Eng Mater
; 70(Pt 6): 942-7, 2014 Dec.
Article
in English
| MEDLINE
| ID: mdl-25449617
ABSTRACT
N-Carbamylmaleamic acid (malur) undergoes cyclodehydration under favourable conditions, as expected, to give N-carbamyl maleimide. N-(Carboxymethyl) maleamic acid (malgly), however, does not undergo a similar cyclization reaction. Strong π bonding between the C and N of the amide group as well as two intramolecular hydrogen bonds makes malgly a planar molecule, as revealed by single-crystal X-ray studies.