Compounds, vii

Bauder R, B Tshisuaka, F Lingens (1990) Microbial metabolism of quinoline and related compounds VII. Quinoline oxidoreductase from Pseudomonas putida a molybdenum-containing enzyme. Biol Chem Hoppe-Seyler 371 1137-1144. 

Studies related to Naturally Occurring Acetylene Compounds. VII. The Synthesis of two Stereoisomers of Methyl n-Decadiene-2,8-diyn-4,6-oates the Configuration of Matricaria Ester. Acta Chem. Scand. 5, 1244 (1951). 

Sengupta P, Mukhopadhyay J. Terpenoids and related compounds—VII triterpenoids of Phyllanthus acidus Skeels. Phytochemistry 1966 5 531-534. 

The molecular structures of compounds (VII), (VIII), and (IX) also have much in common (Fig. If, Table 1) all three compounds consist of [TC6Br6(/t3-Br)5]2 anions and M+ cations where M+ = (C4H9)4N+ or [H30(H20)3]+). For compound (IX) such a structure is established indirectly, because compound (VIII) is easy to obtain by adding [(C4H9)4N] + cations both to the solutions of compound (IX) and to those of compound (VII). Besides, compound (IX) possesses chemical and physico-chemical properties similar to those of compounds (VII) and (VIII). 

Since the clusters formed, [Tc8Br4(/ -Br)8]Br -2H20 and [H(H20)2]-[[Tc8Br4(/i-Br)8]Br, have a very low solubility, they are precipitated from the reaction solution. On the other hand [Tc8Br4(ju-Br)8]Br2 2"possesses high solubility, so it can be accumulated in solution and enter into further reactions. Thus, for example, if [H(H20)2]2 [Tc8Br4(p-Br)8]Br2 is taken as the initial compound for the synthesis in the autoclave, then at a temperature 180°C, compounds (VII) and (IX) (Table 2) and ions [Tc2Br8]5 will be three of the products (27) [44],... 

When compound (VII) was heated to 130° for 2-5 hr. it isomerized to OO -diethyl S-ethylmercaptoethyl phosphoro-thiolate (VIII). This was shown by successive partitioning of the heated product between suitable solvents, the partition ratios of the radioactive phosphorus being determined after each extraction. If only one compound is present all the ratios would be the same if two or more compounds are present, the observed over-all partition ratios would change in systematic fashion. 

This leaves only one compound which must be phospho enol pyruvate (PEP) as compound (vii). 

Roberts, J. D., and V.C. Chambers Small-Ring Compounds. VII. Physical... 

Wilson, C. L. Reaction of Furan Compounds. VII. Thermal Interconver-... 

There is only one reported example for Eq. (41) addition of WClg to iBuBNiBu gives tBuBCl2 and compound VII. Possible intermediates corresponding to hypothetical steps (a) and (b) were not observed (77). 

Schrenk HH, Patty FA, Yant WP Acute response of guinea pigs to vapors of some new commercial organic compounds. VII. Dichloroethyl ether. Puh Health Rep 48 1389-1398, 1933... 

The purification of tetryl aims at removing by-products such as tetranitro derivative (VII), substances insoluble in benzene and the spent acid occluded by the crystals. The product is washed with cold water and then treated with hot water. This brings about the conversion of compound (VII) to (VIII)—the latter is soluble in hot water. The tetryl is then dissolved in benzene and insoluble constituents removed by filtration. The resulting solution is washed with water until it is completely free from acid. Alternatively, tetryl may be dissolved in acetone, precipitated with water, and finally deacidified. 

On nitrolysis of the bond C the compound (VII) finally gives cyclonite. If, however, the bond D is nitrolysed, a chain compound may be formed. 

Among the reaction products a cyclic ether is also present to which the structure (X) is ascribed. It is possible that it arises either from the compound (VII) on nitrolysis of the two bonds D and G and the dehydration of the two alcohol groups so produced, or directly from the compound (VII) on a sui generis nitrolysis... 

Wright et al. [46] pointed out that apart from the compound (VII) nitrolysis of hexamine may also lead to the transient formation of l-di(hydroxymethyl)-amino-methyl-3,5-dinitro-l,3,5-triazacyclohexane (XIII) [(VI) is the dinitrate of (XIII)] through the nitrolysis of the bonds K and M ... 

To protect the hydroxyl groups of the compound (VII) or (XIII) by acetylation Wright cooled a solution after nitrolysis to — 55°C and then added acetic anhydride at a temperature below — 25°C. Apart from cyclonite he isolated l-acetoxy-7-nitroxy-2,4,6-trinitro-2,4,6-triazaheptane (XIV). The addition of the solution from nitrolysis to acetic anhydride gave a diacetyl derivative 1,7-diacetoxy-2,4,6-trinitro-2,4,6-triazaheptane (XV) ... 

Stelter L, von Sonntag C, Schulte-Frohlinde D (1975a) Radiation chemistry of DNA-model compounds VIII. Dephosphorylation products from reactions of OH radicals with ribose-5-phos-phate in aqueous solution. The effect of oxygen. Z Naturforsch 30b 609-615 Stelter L, von Sonntag C, Schulte-Frohlinde D (1975b) Radiation chemistry of DNA-model compounds, VII. On the formation of 5-deoxy-D-eryffrro-pentos-4-ulose and the identification of 12 further products from y-irradiated aqueous solutions of ribose-5-phosphate. Z Naturforsch 30b 656-657... 

Zakharyan, R.A., Ayala-Fierro, F., Cullen, W.R. et al. (1999) Enzymatic methylation of arsenic compounds. VII. Monomethylarsonous acid (MMA(III)) is the substrate for MMA methyltransferase of rabbit liver and human hepatocytes. Toxicology and Applied Pharmacology, 158(1), 9-15. 

My co-worker J. Sedlmeier then held the view that the amine-containing iron carbonyl complexes were also ionic compounds (VII, 14, 21). Hence the compound Fe2(CO)4(en)3 (en= 1,2-ethylenediamine) was formulated as [Fe(en)3]2+[Fe(CO)4]2. Systematic investigations revealed that reactions of the iron carbonyls with other nitrogen and oxygen donors likewise involved valency disproportionation of the metal with concomitant formation of mono- and polynuclear carbonylferrates, viz., [Fe(CO)4]2, [Fe2(CO)8]2-, [Fe3(CO)n]2-. R. Werner (VII, 15, 17, 19, 20) even discovered and characterized compounds containing the tetranuclear anion [Fe4(CO)13]2, the first being that from pyridine and iron carbonyl, viz.,... 

More successful asymmetric reductions have been based on amine (particularly alkaloid) complexes of bis(dimethylglyoximato) cobalt(II), also known as cobaloxime(II) and represented Co(dmg)2 (compound VII). Cobaloxime-chiral amine complexes have been used to catalyze the hydrogenation of both olefinic and ketonic substrates (Fig. 24). It has been determined that hydroxyamine modifiers, for example, alkaloids such as quinine, quinidine, and cinchonidine, are most effective. The highest optical purity obtained thus far has been 71%, observed for reduction of benzil in benzene solution at 10° using quinine as the... 

Structure VI is transformed into the more stable compound VII. This transformation is restricted to NaX zeolites. Although LiX and KX give rise to the formation of species VI at room temperature, carbonate structures were completely absent on CaX, SrX, and BaX at room temperature (280) but were formed at elevated temperatures (286). This behavior of various zeolites, which in detail depends on the degree of exchange, is explained by the location of the exchangeable cations on different sites in the zeolite framework (282). 

Finally, a series of complexes in which dioxygen is weakly bound to the metal have been used as models for biological oxygen transport.166 a,b The mode of bonding of the 02 group in compound VII is bent, with a Co—O—O bond angle of 153°. The complex may be formulated as a low-spin octahedral Co(III) complex of the superoxide ion, 02 Electron spin resonance studies of other Schiff base and porphyrin complexes also support superoxide-type structures.166b... 

L.C. Thomas and R.A. Chittenden, Characteristic infra-red absorption frequencies of organophosphorus compounds-VII. Phosphorus ions, Spectrochim. Acta, 26A, 781-800 (1970). 

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