4,5-Dihydrocyclopenta[b]thiophen-6-one
نویسندگان
چکیده
The title compound, C(7)H(6)OS, crystallizes with two similar mol-ecules, 1 and 2, in the asymmetric unit. Both mol-ecules are essentially planar with r.m.s. deviations of 0.0193 and 0.0107 Å for the planes through the nine non-H atoms of mol-ecules 1 and 2, respectively. The thio-phene and 4,5-dihydro-cyclo-penta-dienone rings are inclined at 2.40 (13)° in 1 and 0.64 (13)° in 2. In the crystal structure π-π [3.6542 (17) Å] and C-H⋯π contacts stack the mol-ecules into columns in an inverse fashion along the b axis. An extensive series of C-H⋯O hydrogen bonds links the columns, generating an extended network structure.
منابع مشابه
1,5-Dimethyl-4-{[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-ylidene)(thiophen-2-yl)methyl]amino}-2-phenyl-1H-pyrazol-3(2H)-one
In the title compound, C(26)H(23)N(5)O(2)S, an intra-molecular N-H⋯O inter-action generates an S(6) ring. The essentially planar S(6) and pyrazole rings [maximum deviations = -0.0270 (14) and 0.0195 (15) Å, respectively] are nearly coplanar, making a dihedral angle of 3.94 (6)°. The S(6) ring makes dihedral angles of 23.79 (6), 78.53 (6) and 67.91 (6)° with the pyrazolone ring, the pyrazole rin...
متن کاملMethyl 2-{[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-ylidene)(thiophen-2-yl)methyl]amino}-3-phenylpropionate
In the title compound, C(25)H(23)N(3)O(3)S, an intra-molecular N-H⋯O inter-action generates an S(6) ring, which stabilizes the enamine-keto form of the compound. This S(6) ring and the pyrazole ring are essentially coplanar, making a dihedral angle of 1.49 (6)°. The bond lengths within the S(6) ring of the mol-ecule lie between classical single- and double-bond lengths, indicating extensive con...
متن کامل2-[5-(2-Methylphenyl)-3-(2-methylstyryl)-4,5-dihydro-1H-pyrazol-1-yl]-6-(thiophen-2-yl)-4-(trifluoromethyl)pyrimidine chloroform monosolvate
In the crystal structure of the title compound, C28H23F3N4S·CHCl3, the chloro-form solvate mol-ecules connect the pyrimidine mol-ecules into chains along [101] through weak C-H⋯N and C-H⋯Cl hydrogen-bond inter-actions. There are further connections between adjacent chains through F⋯Cl halogen contacts of 3.185 (3) Å, with the -CF3 group presenting a significant short F⋯F inter-chain distance of...
متن کامل6-Chloro-2-(thiophen-2-yl)-1-[(thiophen-2-yl)methyl]-1H-benzimidazole
The title compound, C16H11ClN2S2, co-crystallizes with a small amount of the 5-chloro- isomer. The ratio of 6-chloro- to 5-chloro- isomers is 0.969 (2):0.031 (2). One thio-phen-2-yl substitutent displays rotational disorder with 80.6 (4)% of the mol-ecules exhibiting the major orientation. In the crystal, weak C-H⋯N and C-H⋯S hydrogen-bonding inter-actions result in chains of mol-ecules paralle...
متن کاملOne-pot synthesis of tetrahydropyrimido[4,5-b]quinoline derivatives using sulfonic acid functionalized SBA-15 and their antimicrobial activities
A Simple and efficient method for synthesis of tetrahydropyrimido[4,5-b]quinoline derivatives via three component reaction of aromatic aldehydes, dimedone and 6-amino uracil derivatives using a catalytic amount of sulfonic acid functionalized nanoporous silica (SBA-15-Pr-SO3H) is described. The advantages of this method are easy and clean work-up, high yield, mild reaction c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 68 شماره
صفحات -
تاریخ انتشار 2012