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4‐(2‐Methylphenyl)‐1,2,3,4,5,6,7,8‐octahydroquinazoline‐2,5‐dione (I) and 4‐(4chlorophenyl)‐1,2,3,4,5,6,7,8‐octahydroquinazoline‐2,5‐dione (II)
Author(s) -
Kendi E.,
Saraç S.,
Yarim M.,
Ertan M.,
Läge M.,
Krebs B.
Publication year - 1997
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170320619
Subject(s) - chemistry , stereochemistry , crystallography
The crystal and molecular structures of the title compounds have been determined by x‐ray structure analysis. The compounds (I) and (II) crystallize in space groups P2 1 2 1 2 1 and 12/a respectively. The structures were solved by direct methods and refined to R = 0.058 and R = 0.046. The saturated pyrimidine‐2‐one ring in both structures deviates from the planarity. There are two intermolecular hydrogen bonds in (I) and (II). The configuration at C4 in (I) is S.