The title compound, C(14)H(10)Cl(4)O(4)S, is a 2,2,2-trichloro-ethyl-protected precursor of 4'-chloro-biphenyl-3-yl sulfate, a sulfuric acid ester of 4'-chloro-biphenyl-3-ol. The C(aromatic)-O and O-S bond lengths of the C(aromatic)-O-S unit are comparable to those in structurally analogous biphenyl-4-yl 2,2,2-trichloro-ethyl sulfates with no electro-negative chlorine substituent in the benzene...

In the title mol-ecule, C24H26N4, the pyrazoline ring assumes an envelope conformation with the aniline-bearing C atom at the flap position. The benzene ring and the pyridine ring form with the pyrazoline ring dihedral angles of 4.53 (1) and 6.26 (1)°, respectively. In turn, the aniline group is nearly perpendicular to the pyrazoline ring [dihedral angle = 79.96 (1)°]. The ethyl groups of the d...

In the title compound, C23H20F3N3O3S2, the benzo-imidazole unit makes dihedral angles of 5.02 (1) and 76.42 (1)°, respectively, with the pyridine and methyl-benzene rings; the dihedral angle between the pyridine and methyl-benzene rings is 72.19 (1)°. In the crystal, mol-ecules are connected by weak C-H⋯F, C-H⋯O and C-H⋯N hydrogen bonds. Weak C-H⋯π inter-actions and π-π stacking [centroid-centr...

In the title compound, C(22)H(20)O(5), the substituted benzene rings are twisted away from the furan ring, making dihedral angles of 54.91 (14) and 20.96 (15)° with the furan ring. The dihedral angle between the two benzene rings is 46.89 (13)°. One ethyl group of one eth-oxy-carbonyl unit is disordered over two sets of sites with occupancies of 0.56 (12) and 0.44 (12). In the crystal, weak int...

Many industrial practices and waste treatment operations produce gas streams containing volatile organic compounds (VOCs) that require treatment. Although biological treatment has been applied successfully to treat many waste gases, the literature contains numerous reports of diminished treatment performance under conditions of excessive drying or low pH in biofilter beds. Use of fungi in biofi...

The title compound, C34H37N, is a pyrene derivative in which the pyrene ring system is linked to an ethyl-cyclo-hexane unit which, in turn, carries a [4-(di-methyl-amino)-phen-yl]ethyl substituent in the para position. The central cyclo-hexane ring has a chair conformation, with the exocyclic C-C bonds in equatorial orientations. The benzene ring is inclined to the mean plane of the pyrene ring...

The title compound, C(12)H(11)FO(3)S, was prepared by alkaline hydrolysis of ethyl 2-(3-ethyl-sulfan-yl-5-fluoro-1-benzofuran-2--yl) acetate. In the crystal structure, the carboxyl groups are involved in inter-molecular O-H⋯O hydrogen bonds, which link the mol-ecules into centrosymmetric dimers. These dimers are further packed into stacks along the b axis by aromatic π-π inter-actions between t...

Reaction of dibenzoylmethane with (diacetoxyiodo)benzene in the presence of KOH in MeCN quantitatively gave the corresponding iodonium ylide, which was treated with a HF reagent to afford the corresponding 2-fluorinated dibenzoylmethane in 14-50% yields. The similar reaction of the iodonium ylides obtained from 1-phenylbutan-1,3-dione, ethyl benzoylacetate, and ethyl p-nitrobenzoylacetate with ...

The asymmetric unit of the title compound, C(12)H(14)N(2) (2+)·2C(7)H(5)O(5) (-)·1.5H(2)O, contains two 4,4'-ethyl-enedipyridinium cations, four gallate anions and three water mol-ecules. In the 4,4'-ethyl-enedipyridinium cations, the dihedral angles between the pyridinium rings are 4.3 (3) and 18.6 (3)°. Extensive classical N-H⋯O and O-H⋯O hydrogen bonding and weak C-H⋯O hydrogen bonding and C...

In the title compound, C17H21N3O3, the non-planar (r.m.s. deviation = 0.212 Å) ethyl (oxo)acetate group is oriented towards the phenyl substituent. The triazole and benzene rings are twisted with respect to each other, making a dihedral angle of 41.69 (6)°. In the crystal, mol-ecules are arranged into centrosymmetric R 2 (2)(10) dimers via pairs of C-H⋯O inter-actions involving the ethyl (oxo)a...