Based on the trigonal symmetry of the title triazine 1 and the Br3 supramolecular synthon, a hexagonal host system has been designed and shown to include hexachlorobenzene, 2,4,6-collidine, 1-methylnaphthalene and mesitylene guests in its porous structure. In the 1.hexachlorobenzene (2:1) inclus...
Previously, we identified 1-(2-(4-bromophenoxy)ethoxy)-3-(4-(2-methoxyphenyl)piperazin-1-yl)propan-2-ol (1) as a novel Hsp90 inhibitor with moderate activity through virtual screening. In this study, we report the optimization process of 1. A series of analogues containing the 1-phenylpiperazine...
A new series of ester analogues of artemisinin 8a–f, incorporating diphenylmethyl as pharmacologically privileged substructure, and 8g–j have been prepared and evaluated for their antimalarial activity against multidrug-resistant (MDR) Plasmodium yoelii nigeriensis in Swiss mice via oral route...
Improved power efficiency in blue phosphorescent organic light-emitting diodes (PHOLEDs) was demonstrated by using new high triplet energy hole-transport materials based on the diphenylmethyl linkage. Two high triplet energy hole-transport materials with diphenylamine or ditolyamine moieties lin...
Four new highly oxygenated xanthones, named muchimangins A–D (1–4), with a diphenylmethyl substituent have been isolated as extremely minor constituents from the root of Securidaca longepedunculata (Polygalaceae). Among them, muchimangin B (2) induced an apoptotic-like cell death of human panc...
A series of 3-diphenylmethyl-6-substituted-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazole derivatives (4a–j and 5a–d) were synthesized by condensation of 4-amino-5-diphenylmethyl-4H-1,2,4-triazole-3-thiol with various substituted aromatic acids and aryl/alkyl-isothiocyanates. The structures of synthe...
The use of diphenylmethyl (DPM) as a protecting group for sulfonamides is reported.
A diphenylmethyl-linkage-based high-triplet-energy organic material, 3-(dibenzofuran-2-yldiphenylmethyl)-9-phenyl-9H-carbazole (TCDFCz), was synthesized as a host material for deep-blue phosphorescent organic light-emitting diodes (PHOLEDs). High-triplet-energy moieties, 9-phenylcarbazole and di...
Using microwave irradiation and protic ionic liquids (pIL) as co-solvent and catalyst for the synthesis of several diphenylmethyl ethers was achieved. The desired ethers were isolated simply by filtration through a silica plug to remove the pIL and proceeded in high yields (60–98%). These react...
The diphenylmethyl group is a molecular propeller that can detect the chirality of a nearby stereogenic center through electronic circular dichroism spectra, within the short wavelength region of the phenyl 1B transitions (190–200 nm). A positive exciton Cotton effect was associated with a posi...
Two new highly oxygenated xanthones, named muchimangins E (1) and F (2), have been isolated from the root of Securidaca longepedunculata (Polygalaceae). Their structures were elucidated by the analyses of spectral data to be a novel xanthone with a diphenylmethyl substituent at C-2. Moreover, th...
A practical method for the direct preparation of diphenylmethyl (DPM) esters from 2-diphenylmethoxypyridine is described. The reaction was readily performed in the presence of a catalytic amount of boron trifluoride-diethyl etherate at room temperature. Using this reaction protocol, various carb...
Cornstalk liquefaction (CSL) in methanol, water or methanol/water mixed solvents was studied at 250–320 °C. Each reaction mixture was separated into extract 1 (E1, including the solute in filtrate and methanol-extractable portion), extract 2 (E2, methanol-inextractable but isometric carbon dis...
Through experiments with fluoro-labelled phenylalanine, tyrosine and benzaldehyde, the biochemical pathway leading to the chlorinated methoxybenzaldehydes in the white rot fungus Bjerkandera adusta has now been verified. Cultures of this organism supplied with fluoro-labelled phenylalanine, tyro...
Fourier-transform laser Raman (3500–50 cm−1) and infrared (4000–400 cm−1) spectral measurements have been made for the solid 3-chloro-4-methoxybenzaldehyde. The electronic structure calculations – ab initio (RHF) and hybrid density functional methods (B3LYP and B3PW91) – have been performed ...
Dns derivatization prior to fluorescence detection of phenylurea herbicides (after hydrolysis) and their aniline metabolites was further developed for residue analytical purposes with high-performance (HPLC) and thin-layer chromatography (TLC). Metoxuron and 3-chloro-4-methoxyaniline (CMA) were ...
The phenylurea herbicide metoxuron and its main metabolite, 3-chloro-4-methoxyaniline, can be determined rapidly in aqueous samples via extraction, derivatization with heptafluorobutyric anhydride (HFBA), washing with an aqueous bufferof pH 8, and analysis by capillary GC with electron capture d...
A series of carbamate prodrugs of scutellarin methyl ester (4a–4e) were prepared in the presence of bis(trichloromethyl) carbonate (BTC) with scutellarin methyl esters and l-amino acid tert-butyl ester hydrochloride as starting materials. In vitro stability and aqueous solubility of target comp...
Publisher SummaryThis chapter presents the values of thermal conductivity of gas (organic compounds) in tabular form. For the tabulation, an equation is selected for thermal conductivity of gas as a function of temperature. The tabulation is arranged by carbon number such as C, C2, and C3 to pro...
A pilot-scale counter current absorption process for upgrading municipal solid waste (MSW) landfill gas to produce vehicle fuel was studied using absorption, desorption and drying units and water as an absorbent. Continuous water recycling was used without adding new water to the system. The pro...
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