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*  Friedländer synthesis
Bergstrom, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: Pyridine, Quinoline, and ... In the first mechanism 2-amino substituted carbonyl compound 1 and carbonyl compound 2 react in a rate-limiting step to aldol ... adduct 3. This intermediate loses water in an elimination reaction to unsaturated carbonyl compound 4 and then loses water ...
*  Doebner-Miller reaction
Bergström, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: Pyridine, Quinoline, and ... β-unsaturated carbonyl compound is prepared in situ from two carbonyl compounds (via an Aldol condensation), the reaction is ... The Doebner-Miller reaction is the organic reaction of an aniline with α,β-unsaturated carbonyl compounds to form quinolines. ... Because α-amino protons are not available in this model compound the reaction is not taken to the fully fledged quinoline. The ...
*  Pfitzinger reaction
Bergstrom, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: Pyridine, Quinoline, and ... is the chemical reaction of isatin with base and a carbonyl compound to yield substituted quinoline-4-carboxylic acids. Several ...
*  Sulfamic acid
Sulphur?nitrogen compounds. Part I. The hydrolysis of sulphamate ion in perchloric acid". Journal of the Chemical Society ( ... is a molecular compound with the formula H3NSO3. This colorless, water-soluble compound finds many applications. Sulfamic acid ... The compound is well described by the formula H3NSO3, not the tautomer H2NSO2(OH). The relevant bond distances are S=O, 1.44 ... Related compounds are also sweeteners, see acesulfame potassium. Sulfamates have been used in the design of many types of ...
*  Taphrina caerulescens
Ultilization of nitrogen compounds. Mycologia, 45(6), 721-727. Mix, A., J. 1953. Differentiation of species of Taphrina in ... There are differences in strains' abilities to metabolize various carbon and nitrogen compounds. This has been proposed as a ... Various strains have also been shown to differ in their nitrogen and carbon compound metabolic profiles In lab, symptoms ... Utilization of nitrogen compounds. Mycologia, 45(5), 649-670. Retrieved from https://www.jstor.org/stable/4547747. Sinclair, W ...
*  Cupriavidus necator
Ammann, E.; Reed, L. (1967). "METABOLISM OF NITROGEN COMPOUNDS BY HYDROGENOMONAS EUTROPHA". Biochim. Biophys. Acta. 141 (1): ... Both organic compounds and hydrogen can be used as a source of energy C. necator can perform aerobic or anaerobic respiration ... It can fix carbon dioxide as a carbon source, use the urea in urine as a nitrogen source, and use hydrogen as an energy source ... by denitrification of nitrate and/or nitrite to nitrogen gas. When growing under autotrophic conditions, C. necator fixes ...
*  Oligosaprobe
Nitrates are among the nitrogen compounds present; there is little carbonic acid and no hydrogen sulfide. Oligosaprobic ...
*  Combes quinoline synthesis
Missing or empty ,title= (help) Bergstrom, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: ... Bergstrom, F.W. and Franklin, E.C. Hexaacylic Compounds: Pyridine, Quinoline, and Isoquinoline In Heterocyclic Nitrogen ... Bergstrom, F.W.; Franklin, E.C. (1944). Hexacyclic Compounds: Pyridine, Quinoline, and Isoquinoline in Heterocyclic Nitrogen ... Deprotonation at the nitrogen atom generates a Schiff base, which tautomerizes to form an enamine that gets protonated via the ...
*  Trimethylthiazoline
... and Nitrogen Compounds in Food Flavors. ACS Symposium Series. 26: 133. doi:10.1021/bk-1976-0026.ch009. ISBN 0-8412-0330-X. ...
*  Amitermitinae
In addition, some species can synthesize nitrogen compounds. Many members of the Amitermitinae have evolved a very effective ...
*  Rare-earth magnet
"Iron-nitrogen compound forms strongest magnet known". PhysOrg. ... However, they form compounds with the transition metals such as ... Rare-earth magnets are made from these compounds. The greater strength of rare-earth magnets is mostly due to two factors. ... The resistance of the crystal lattice to turning its direction of magnetization gives these compounds a very high magnetic ... iron, nickel, and cobalt, and some of these compounds have Curie temperatures well above room temperature. ...
*  Sulfur cycle
An analogous process for organic nitrogen compounds is deamination. Oxidation of hydrogen sulfide produces elemental sulfur (S8 ... The total inventory of sulfur compounds on the surface of the Earth (nearly 7019100000000000000♠1022 g S) represents the total ... Incorporation of sulfide into organic compounds (including metal-containing derivatives). These are often termed as follows: ... and nitrogen: p. 149-186 in J.W. Schopf (ed.), Earth's Earliest Biosphere. Princeton University Press, Princeton, New Jersey. ...
*  Alcian blue stain
Heating Alcian blue produces toxic fumes of nitrogen compounds. It can react violently if mixed with oxidising materials. The ... The sample compound with Merck index number 218 has a melting point of 148 °C. It is a tetravalent basic (cationic) dye with a ... Though the compound alcian blue itself is unstable (see stability below) the staining it produces is stable and light fast . ... Scott also states that Alcian green was merely a mixture of Alcian blue and Alcian yellow and not a single compound, which is ...
*  Metabolic waste
This includes nitrogen compounds, water, CO2, phosphates, sulfates, etc. Animals treat these compounds as excretes. Plants have ... The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs ... Urea is a less toxic compound than ammonia; two nitrogen atoms are eliminated through it and less water is needed for its ... It contains four nitrogen atoms and only a small amount of water (about 0.001 L per 1 g of nitrogen) is needed for its ...
*  Reduction of nitro compounds
"Reduction of Organic Compounds by Lithium Aluminum Hydride. III. Halides, Quinones, Miscellaneous Nitrogen Compounds". J. Am. ... Excess zinc will reduce the azo group to a hydrazino compound.) Aromatic compounds are reduced to azoxy compounds by using: ... Treatment of aromatic nitro compounds with metal hydrides gives good yields of azo compounds. For example, one could use: ... aliphatic nitro compounds or aromatic nitro compounds. Secondary classifications are based upon reaction products. ...
*  Nitrogen
... and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds. Nitrogen is the ... Nitrogen compounds constantly interchange between the atmosphere and living organisms. Nitrogen must first be processed, or " ... These plants are then digested by animals who use the nitrogen compounds to synthesise their own proteins and excrete nitrogen- ... C-N bonds are strongly polarised towards nitrogen. In these compounds, nitrogen is usually trivalent (though it can be ...
*  Glossary of ecology
nitrogen fixation The conversion of nitrogen into nitrogen compounds (ex. nitrate, nitrite) that is carried out naturally by ... nitrogen cycle The continuous cycle by which atmospheric nitrogen and compounded nitrogen are continually exchanged through the ... chemical ecology A branch of ecology which studies the use by organisms of naturally occurring chemical compounds, for example ... primary production The production of organic compounds out of carbon dioxide present in the Earth's atmosphere. All life on ...
*  Leonora Bilger
She earned this honor for her work with asymmetric nitrogen compounds. The medal, first given in 1936, is awarded to women who ... Leonora Bilger (3 February 1893 - 19 February 1975, née Neuffer) was an American chemist who studied nitrogenous compounds. She ... Bilger's studies of nitrogenous compounds began with her thesis work, which concerned hydroxylamines and hydroxamic acids. When ...
*  Amidosulfite
S Sulfur-Nitrogen Compounds: Compounds with Sulfur of Oxidation Number IV. Springer Science & Business Media. ISBN ... These have the form RR'NS(O)OR" Compounds can be a zwitterion with a positive charge on the nitrogen, and a negative charge on ... An amidosulfite is a chemical compound containing the group =NS(O)O-. Substituents can attach two bonds to the nitrogen and one ... This allows three groups to bond to the nitrogen: RR'R"N+S(O)O−. The simplest amidosulfite is amidosulfurous acid H2NS(O)OH. It ...
*  Nitrifying bacteria
These bacteria get their energy by the oxidation of inorganic nitrogen compounds. Types include ammonia-oxidizing bacteria (AOB ... Root nodule Denitrification Denitrifying bacteria f-ratio Nitrification Nitrogen cycle Nitrogen deficiency Nitrogen fixation ... Electron transport chain Mancinelli RL (1996). "The nature of nitrogen: an overview". Life support & biosphere science : ...
*  Fritz Haber
... found a way of making nitrogen compounds from the air. They have two main uses: fertilizers and explosives. His ... atmospheric nitrogen. The ability to produce much larger quantities of nitrogen-based fertilizers in turn supported much ... The production of nitrogen-based products such as fertilizer and chemical feedstocks, previously dependent on acquisition of ... The annual world production of synthetic nitrogen fertilizer is currently more than 100 million tons. The food base of half of ...
*  Fishkeeping
Activated carbon filters absorb nitrogen compounds and other toxins from the water. Biological filters provide a medium ... Although called the nitrogen "cycle" by hobbyists, in aquaria the cycle is not complete: nitrogen must be added (usually ... Nitrogen bound up in plant matter is removed when the plant grows too large. Hobbyist aquaria typically do not have the ... Additional nitrogen and other nutrients are also made available for root uptake by decomposing organic matter in the substrate ...
*  Electrosynthesis
Simons, J. H. (1949). "Production of Fluorocarbons I. The Generalized Procedure and its Use with Nitrogen Compounds". Journal ... Compounds are reduced at the cathode to radical anions. The initial reaction takes place at the surface of the electrode and ... Electrooxidation is studied not only for synthesis but also for efficient removal of certain harmful organic compounds in ... 60, p.78 (1981) Link Hampson, N; Lee, J; MacDonald, K (1972). "The oxidation of amino compounds at anodic silver". ...
*  Pnictogen
The nitrogen compound sal ammoniac (ammonium chloride) was known since the time of the Ancient Egyptians. In the 1760s two ... The majority of nitrogen on earth is in the form of nitrogen gas, but some nitrate minerals do exist. Nitrogen makes up 2.5% of ... Nitrogen gas is completely nontoxic, but breathing in pure nitrogen gas is deadly, because it causes nitrogen asphyxiation. The ... Liquid nitrogen is a commonly used cryogenic liquid. Nitrogen in the form of ammonia a nutrient critical to most plants' ...
*  Mary Beatrice Thomas
The effect of constitution on the rotatory power of optically active nitrogen compounds. Part I". J. Chem. Soc., Trans. 89 (0 ... she did publish with Humphrey Owen Jones on the stereochemistry of optically active nitrogen compounds. However, pressures of ...
*  Beaver dam
... the conversion of nitrogen compounds back into nitrogen). Bacteria in the dirt and the plant debris, which collects at the dams ... These bacterial populations face serious shortages of nitrogen and phosphorus compounds, and will absorb these nutrients as ... Some scientists believe that the nitrogen cascade, the production of far more fixed nitrogen than the natural cycles can turn ... turns nitrates into nitrogen gas. The gas bubbles up to the surface and mixes with the atmosphere once more. Beaver dams and ...