A crystal-to-crystal transformation was observed from a green chain compound CuBr2(1,4-dioxane)2(H2O)2 (1) to a brown layered compound (CuBr2)3(1,4-dioxane)2 (2). The hydrogen bond connecting chains in were replaced by a μ-Br bridge in and the antiferromagnetic interaction between the metal atoms in became stronger than in 1.

The title compound, C(15)H(16)O(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 3,4-dimethyl-benzaldehyde in ethanol. The 1,3-dioxane ring exhibits an envelope conformation. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯O hydrogen bonds, forming chains parallel to the b axis.

1,4-Dioxane is a contaminant of emerging concern that classified by the U.S. Environmental Protection Agency as likely human carcinogen. Moreover, 1,4-dioxane easily migrates to groundwater due its high solubility in water and hard be biodegraded or removed traditional treatment technology. Therefore, it indispensable develop new methods technologies dispose wastewater. Herein, this study prese...

The title compound, C(14)H(21)BrO(3), comprises a seven- (C(7)) and three six-membered (1 × O(2)C(4) and 2 × C(6)) rings, and each adopts a conformation based on a chair. Stability to the mol-ecular structure is afforded by an intra-molecular O-H⋯Br hydrogen bond. In the crystal structure, mol-ecules are arranged into a helical supra-molecular chain along the b axis, linked by C-H⋯O inter-actio...

Lignin from candlenut shells was isolated using an ethanol-water accelerated solvent extraction method. Yields (based on Klason lignin) increased from about 14 to 33% as temperature increased from 100 to 195 °C and were also influenced by the amount of aqueous acid used to precipitate lignin from the extraction liquor. These yields were higher than could be obtained using a conventional dioxane...

Exploiting chemical cooperation between Na and Fe(II) within the bimetallic base [dioxane ⋅ NaFe(HMDS)3] (I), (dioxane=1,4-dioxane, HMDS=N(SiMe3)2) selective ferration of fluorobenzene, 1-fluoronaphthalene, 1,4-difluorobenzene, 1,2,4-trifluorobenzene, 1,3,5-trifluorobenzene, 1-bromo-3,5-difluorobenzene, 3-fluoroanisole 3,5-difluoroanisole has been realized, affording sodium ferrates Na(HMDS)(2-...

' .On the way of purification of beef liver arginase, Kitagawa and author') obtained a crystalline protein and ascertained it to be identical with the crystalline catalase which had been first isolated by Sumner and Dounce2) in 1937. In order to isolate the crystalline catalase, Sumner employed fractional precipitation by dioxane. An attempt to substitute acetone for dioxane was unsuccessful in...

Pseudonocardia dioxanivorans CB1190 is the first bacterium reported to be capable of growth on the environmental contaminant 1,4-dioxane and the first member of the genus Pseudonocardia for which there is an annotated genome sequence. Preliminary analysis of the genome (chromosome and three plasmids) indicates that strain CB1190 possesses several multicomponent monooxygenases that could be invo...

In the crystal structure of the title compound, (C(5)H(6)N)(2)[UCl(4)O(2)]·C(4)H(8)O(2), the pyridinium cations occupy general positions and the anions and the solvent dioxane mol-ecule are located on centres of inversion. The dioxane mol-ecules are connected to two symmetry-related pyridinium cations via O-H⋯O hydrogen bonding. There are additional inter-molecular C-H⋯Cl contacts, which are in...