Some iodinated pyrazole derivatives

Giles, D.; Parnell, E. W.; Renwick, J. D.

doi:10.1039/j39660001179

Cited by 18 publications

(11 citation statements)

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“…40 obtained DNP in 41 % yield by nitrating pyrazole with nitric acid‐trifluoroacetic anhydride at room temperature for 12 h. We have obtained higher yield of DNP by heating 3,4‐diiodopyrazole in nitric acid to reflux 41. In turn, 3,4‐diiodopyrazole was obtained by the iodination of pyrazole with I 2 /KI in ammonium hydroxide 42. The nitration of 4‐nitropyrazole was unsuccessful rather we recovered quantitative amount of starting compound.…”

Section: Melt Cast Explosives and Their Formulationsmentioning

confidence: 99%

“…1‐Methyl‐3,4‐dinitropyrazole melts at 21 °C and thus may serve as an energetic liquid 48, 49. Our attempts to nitrate 1‐methyl‐3,4‐dinitropyrazole have been found to be unsuccessful 42. The thermodynamic properties of MTNP are: melting point=91 °C, dec. point=256 °C, ρ =1.83 g cm −3 , D =8.96 km s −1 , and P =33.54 GPa 45.…”

Section: Melt Cast Explosives and Their Formulationsmentioning

confidence: 99%

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Solanaceae — a model for linking genomics with biodiversity

et al. 2004

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Recent progress in understanding the phylogeny of the economically important plant family Solanaceae makes this an ideal time to develop models for linking the new data on plant genomics with the huge diversity of naturally occurring species in the family. Phylogenetics provides the framework with which to investigate these linkages but, critically, good species-level descriptive resources for the Solanaceae community are currently missing. Phylogeny in the family as a whole is briefly reviewed, and the new NSF Planetary Biodiversity Inventories project 'PBI: Solanum -a worldwide treatment' is described. The aims of this project are to provide species-level information across the global scope of the genus Solanum and to make this available over the Internet. The project is in its infancy, but will make available nomenclatural information, descriptions, keys and illustrative material for all of the approximately 1500 species of Solanum. With this project, the opportunity of linking valid, up-to-date taxonomic information about wild species of Solanum with the genomic information being generated about the economically important species of the genus (potato, tomato and eggplant) can be realized. The phylogenetic framework in which the PBI project is set is also of enormous potential benefit to other workers on Solanum. The community of biologists working with Solanaceae has a unique opportunity to effectively link genomics and taxonomy for better understanding of this important family, taking plant biology to a new level for the next century.

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Section: Melt Cast Explosives and Their Formulationsmentioning

confidence: 99%

Section: Melt Cast Explosives and Their Formulationsmentioning

confidence: 99%

Solanaceae — a model for linking genomics with biodiversity

et al. 2004

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“…Elemental‐analyses data were obtained by using an Exeter CE‐440 elemental analyzer. 4,5‐Diiodoimidazole,3 2,4,5‐triiodoimidazole,3 4‐iodopyrazole,9a 3,4‐diiodopyrazole,9b and 3,4,5‐triiodopyrazole9b were prepared according to literature procedures.…”

Section: Methodsmentioning

confidence: 99%

“…4, 5‐Diiodopyrazole (2) :9b Compound was prepared according to the literature method; product was washed with aqueous ammonia and air dried, yield 40 %. M.p.…”

Section: Methodsmentioning

confidence: 99%

Dense Iodine‐Rich Compounds with Low Detonation Pressures as Biocidal Agents

Zhang

Shreeve

2013

Chemistry A European J

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Fifteen iodo compounds and six iodyl compounds with an iodine content between 45.3 and 89.0 % were prepared. The mono, di, and triiodyl compounds were obtained from the corresponding iodo compound by employing Oxone. All the compounds were characterized by IR, (1)H and (13)C NMR, elemental analysis, and differential scanning calorimetry (DSC). The impact sensitivity was measured by using BAM (Bundesamt für Materialforschung) methodology. Based on the calculated heats of formation and experimental densities, the detonation properties and detonation products were predicted by employing Cheetah 6.0. A total percentage of iodine-containing species in wt % (I2, HI, and I in gas phase) ranged from 46.7 (21) to 88.94 % (11) was found in the detonation products. The high concentration and easy accessibility of iodine and/or iodine-containing species is very important in developing materials suitable as Agent Defeat Weapons (ADWs).

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“…Dyeing kinetics relates closely to the rates of diffu sion of dyes in water and in polymer substrates (1)(2)(3)(4). It is clear that the diffusivities of small organ ic molecules in water and in polymers decrease with increase in the molecular size.…”

Section: Introductionmentioning

confidence: 99%