3-[(Hydroxy)(4-isopropoxy-2-methoxyphenyl)methylene]-1-isopropylpyrrolidine-2,4-dione
نویسندگان
چکیده
The title compound, C(18)H(23)NO(5), a potential herbicide, has an enol group that is intra-molecularly hydrogen bonded to a keto O atom. The dihedral angle between the six-membered ring formed by the enol group and the aromatic benzene ring is 53.35 (6)°.
منابع مشابه
2-Hydroxy-16-[(E)-4-hydroxy-3-methoxybenzylidene]-13-(4-hydroxy-3-methoxyphenyl)-11-methyl-1,11-diazapentacyclo[12.3.1.02,10.03,8.010,14]octadeca-3(8),4,6-triene-9,15-dione
In the title compound, C(32)H(30)N(2)O(7), the piperidone ring adopts a chair conformation and the five-membered ring of the dihydro-indenone ring system adopts an envelope conformation. Intra-molecular O-H⋯N and C-H⋯O hydrogen bonds occur. The dihedral angle between the two hydr-oxy-subsituted methoxy-phenyl rings is 71.12 (5)°. In the crystal structure, mol-ecules are connected by inter-molec...
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In the title isoquinoline-dione derivative, C(16)H(16)N(2)O(3)S, the piperidine ring in the tetra-hydro-isoquinoline ring system adopts a distorted envelope conformation. The thia-zole ring is essentially planar [maximum deviation = 0.004 (1) Å] and is inclined at a dihedral angle of 31.08 (3)° with respect to the mean plane through the tetra-hydro-isoquinoline ring system. In the crystal struc...
متن کامل1-(2-Hydroxy-5-methoxyphenyl)ethan-1-one N-[(E)-1-(2-hydroxy-5-methoxyphenyl)ethylidene]hydrazone
In the title mol-ecule, C(18)H(20)N(2)O(4), which resides on a crystallographic centre of inversion (at the centre of the N-N bond), all non-H atoms apart from the meth-oxy substituent are approximately coplanar. The structure displays intra-molecular O-H⋯N hydrogen bonding.
متن کامل7-(Benzylsulfanyl)-5-(2-methoxyphenyl)-1,3-dimethyl-5,6-dihydropyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione
In the mol-ecule of the title compound, C(22)H(22)N(4)O(3)S, the benzene and phenyl rings are oriented at a dihedral angle of 88.72 (4)°. The other two rings have flattened-boat conformations. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules.
متن کامل5,5′-[(2,4-Dichlorophenyl)methylene]bis(2,2-dimethyl-1,3-dioxane-4,6-dione)
The title compound, C(19)H(18)Cl(2)O(8), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 2,4-dichloro-benzaldehyde in ethanol. The two 1,3-dioxane rings exhibit boat conformations. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯O and C-H⋯Cl hydrogen bonds, forming chains parallel to the a axis.
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