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9-Furfuryl-idene-2,3-dimethyl-6,7,8,9-tetrahydro-4H--thieno[2',3':4,5]pyrimidino[1,2-a]pyridin-4-one.

ABSTRACT: The title compound, C(17)H(16)N(2)O(2)S, was obtained by condensation of 2,3-dimethyl-thieno[2',3':4,5]pyrimidino[1,2-a]pyridin-4-one with furfural in the presence of sodium hydroxide. One of the methyl-ene groups of the tetra-hydro-pyrido ring is disordered over two positions in a 0.87?(1):0.13?(1) ratio. The thieno[2,3-d]pyrimidin-4-one unit and the furan ring are both planar (r.m.s. deviation = 0.535?Å), and coplanar with each other, forming a dihedral angle of 5.4?(1)°. Four weak inter-molecular hydrogen bonds (C-H?O and C-H?N) are observed in the structure, which join mol-ecules into a network parallel to (101).

SUBMITTER: Bozorov KA 

PROVIDER: S-EPMC2983712 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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9-Furfuryl-idene-2,3-dimethyl-6,7,8,9-tetrahydro-4H--thieno[2',3':4,5]pyrimidino[1,2-a]pyridin-4-one.

Bozorov Khurshed A KA   Elmuradov Burkhon Zh BZh   Okmanov Rasul Ya RY   Tashkhodjaev Bakhodir B   Shakhidoyatov Khusnutdin M KM  

Acta crystallographica. Section E, Structure reports online 20100206 Pt 3

The title compound, C(17)H(16)N(2)O(2)S, was obtained by condensation of 2,3-dimethyl-thieno[2',3':4,5]pyrimidino[1,2-a]pyridin-4-one with furfural in the presence of sodium hydroxide. One of the methyl-ene groups of the tetra-hydro-pyrido ring is disordered over two positions in a 0.87 (1):0.13 (1) ratio. The thieno[2,3-d]pyrimidin-4-one unit and the furan ring are both planar (r.m.s. deviation = 0.535 Å), and coplanar with each other, forming a dihedral angle of 5.4 (1)°. Four weak inter-molec  ...[more]

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