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(E)-3-(4-Hydr-oxy-3-methoxy-benzyl-idene)-4-(4-hydroxy-phen-yl)pyrrolidin-2-one.

Zhou YF, Wang XB, Qi J, Yu BY - Acta Crystallogr Sect E Struct Rep Online (2008)

Bottom Line: The 4-hydroxyphenyl ring makes a dihedral angle of 69.74 (6)° with the least-squares plane through the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring.The conformation of the pyrrolidine fragment is similar to a T-form.The crystal structure is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.

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ABSTRACT
The title compound, C(18)H(17)NO(4), was isolated from an ethanol extract of Ophiopogon japonicus. The dihedral angle between the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring is 17.4 (1)°. The 4-hydroxyphenyl ring makes a dihedral angle of 69.74 (6)° with the least-squares plane through the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring. The conformation of the pyrrolidine fragment is similar to a T-form. The crystal structure is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.

No MeSH data available.


N—H···O and O—H···O hydrogen bond interactions (dotted lines) in the title compound. [Symmetry code: (i) -x, -y+1, -z+1; (ii) -x, y+1/2, -z+1/2; (iii) -x+1, -y+1, -z.]
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Fap2: N—H···O and O—H···O hydrogen bond interactions (dotted lines) in the title compound. [Symmetry code: (i) -x, -y+1, -z+1; (ii) -x, y+1/2, -z+1/2; (iii) -x+1, -y+1, -z.]


(E)-3-(4-Hydr-oxy-3-methoxy-benzyl-idene)-4-(4-hydroxy-phen-yl)pyrrolidin-2-one.

Zhou YF, Wang XB, Qi J, Yu BY - Acta Crystallogr Sect E Struct Rep Online (2008)

N—H···O and O—H···O hydrogen bond interactions (dotted lines) in the title compound. [Symmetry code: (i) -x, -y+1, -z+1; (ii) -x, y+1/2, -z+1/2; (iii) -x+1, -y+1, -z.]
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2961252&req=5

Fap2: N—H···O and O—H···O hydrogen bond interactions (dotted lines) in the title compound. [Symmetry code: (i) -x, -y+1, -z+1; (ii) -x, y+1/2, -z+1/2; (iii) -x+1, -y+1, -z.]
Bottom Line: The 4-hydroxyphenyl ring makes a dihedral angle of 69.74 (6)° with the least-squares plane through the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring.The conformation of the pyrrolidine fragment is similar to a T-form.The crystal structure is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
The title compound, C(18)H(17)NO(4), was isolated from an ethanol extract of Ophiopogon japonicus. The dihedral angle between the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring is 17.4 (1)°. The 4-hydroxyphenyl ring makes a dihedral angle of 69.74 (6)° with the least-squares plane through the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring. The conformation of the pyrrolidine fragment is similar to a T-form. The crystal structure is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.

No MeSH data available.