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2-Meth-oxy-3-[(3,4,5-trimethoxy-anilino)methyl-idene]-3,4-dihydro-2H-1-benzopyran-4-one.

ABSTRACT: The title mol-ecule, C(20)H(21)NO(6), adopts a keto-amine tautomeric form. An intra-molecular N-H?O hydrogen bond, classified as a resonanse-assisted hydrogen bond, influences the mol-ecular conformation; the two benzene rings form a dihedral angle of 24.6?(1)°. In the crystal structure, weak inter-molecular C-H?O hydrogen bonds link mol-ecules into chains propagating along [001].

SUBMITTER: Malecka M 

PROVIDER: S-EPMC2980241 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature

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2-Meth-oxy-3-[(3,4,5-trimethoxy-anilino)methyl-idene]-3,4-dihydro-2H-1-benzopyran-4-one.

Małecka Magdalena M   Ciołkowski Michał M   Budzisz Elżbieta E  

Acta crystallographica. Section E, Structure reports online 20091224 Pt 1

The title mol-ecule, C(20)H(21)NO(6), adopts a keto-amine tautomeric form. An intra-molecular N-H⋯O hydrogen bond, classified as a resonanse-assisted hydrogen bond, influences the mol-ecular conformation; the two benzene rings form a dihedral angle of 24.6 (1)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into chains propagating along [001]. ...[more]

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