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Journal articles on the topic 'Nitrogen compounds – Reactivity'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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1

Davydov, Evgeny, Irina Gaponova, Georgy Pariiskii, Tatyana Pokholok, and Gennady Zaikov. "Reactivity of Polymers on Exposure to Nitrogen Dioxide." Chemistry & Chemical Technology 4, no. 4 (2010): 281–90. http://dx.doi.org/10.23939/chcht04.04.281.

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The mechanism of reactions of nitrogen dioxide with polymers of different classes is considered. In reactions with carbon-chain polymers at 298 K, nitrogen dioxide can only add to extrinsic double bonds that are formed in the synthesis of the polymers. The mechanism of reactions of nitrogen dioxide with polymers of different classes is considered. In reactions with carbon-chain polymers at 298 K, nitrogen dioxide can only add to extrinsic double bonds that are formed in the synthesis of the polymers. These reactions resulted in dinitro compounds and nitro nitrites. At elevated temperatures, ca
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2

Lazraq, M., J. Escudie, C. Couret, J. Satge, and M. Soufiaoui. "Reactivity of dimesitylfluorenylidenegermane with unsaturated nitrogen compounds." Organometallics 10, no. 4 (1991): 1140–43. http://dx.doi.org/10.1021/om00050a054.

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3

LAZRAQ, M., J. ESCUDIE, C. COURET, J. SATGE, and M. SOUFIAOUI. "ChemInform Abstract: Reactivity of Dimesitylfluorenylidenegermane with Unsaturated Nitrogen Compounds." ChemInform 22, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199130252.

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4

Grieve, Duncan M. A., Graham E. Lewis, Michael D. Ravenscroft, et al. "Reactivity of Carbenes and Related Compounds towards Molecular Nitrogen." Helvetica Chimica Acta 68, no. 5 (1985): 1427–43. http://dx.doi.org/10.1002/hlca.19850680534.

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5

García-Río, Luis, Emilia Iglesias, J. Ramón Leis, M. Elena Peña, and Ana Ríos. "Reactivity of nucleophilic nitrogen compounds towards the nitroso group." J. Chem. Soc., Perkin Trans. 2, no. 1 (1993): 29–37. http://dx.doi.org/10.1039/p29930000029.

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6

Habraken, Evi, Andrew Jupp, and J. Slootweg. "Diazonium Salts as Nitrogen-Based Lewis Acids." Synlett 30, no. 08 (2019): 875–84. http://dx.doi.org/10.1055/s-0037-1612109.

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Aryldiazonium salts are widely used in many organic transformations with displacement of N2 or through addition to the terminal nitrogen. Such aryldiazonium salts can be viewed as N-based Lewis acids that can react with Lewis bases to synthesize a wide variety of azo compounds. Additionally, diazonium salts are known to undergo single-electron transfer and release N2, forming an aryl radical, which results in different reactivity. Herein, we provide a concise overview of the reactivity of aryldiazonium salts undergoing classical donor-acceptor reactivity or single-electron transfer.
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7

Bernardi, Rosanna, Barbara Novo, and Giuseppe Resnati. "Reactivity of perfluoro-(cis-2,3-dialkyloxaziridines) with heteroaromatic nitrogen compounds." Journal of the Chemical Society, Perkin Transactions 1, no. 20 (1996): 2517. http://dx.doi.org/10.1039/p19960002517.

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8

GARCIA-RIO, L., E. IGLESIAS, J. R. LEIS, M. E. PENA, and A. RIOS. "ChemInform Abstract: Reactivity of Nucleophilic Nitrogen Compounds Towards the Nitroso Group." ChemInform 24, no. 16 (2010): no. http://dx.doi.org/10.1002/chin.199316126.

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9

Tang, Xun, Shu Yuan Li, Chang Tao Yue, Ji Lai He, and Ji Li Hou. "Hydrodenitrogenation of Basic and Non-Basic Nitrogen Compounds in Shale Oil over NiW/Al2O3 Catalyst." Advanced Materials Research 798-799 (September 2013): 45–48. http://dx.doi.org/10.4028/www.scientific.net/amr.798-799.45.

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The hydrodenitrogenation (HDN) of Longkou shale oil were carried out in microscale trick-bed reactor over a commercial NiW/Al2O3 catalyst with high HDN activity. The effects of temperature, pressure, liquid hourly space velocity (LHSV) and hydrogen/oil ratio on the conversions of total, basic and non-basic nitrogen compounds were investigated at various conditions (340-420°C, 0.2-2h-1, 4-9MPa and 400-1000 L/L). The results show that basic nitrogen compounds have higher HDN reactivity than non-basic nitrogen. The distributions and species of nitrogen compounds in Longkou shale oil were also inv
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10

Wang, Jinghua, Meng Cai, Fengqi Zhao, and Kangzhen Xu. "A Review on the Reactivity of 1-Amino-2-Nitroguanidine (ANQ)." Molecules 24, no. 19 (2019): 3616. http://dx.doi.org/10.3390/molecules24193616.

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1-Amino-2-nitroguanidine (ANQ) is a high-energy nitrogen-rich compound with good detonation properties and low sensitivities. ANQ has only a central carbon atom with three small groups around it, including an amino, a hydrazine and a nitroxyl group. Though the molecular structure of ANQ is very simple, its reactivity is surprisingly abundant. ANQ can undergo various reactions, including reduction reaction, acylation reaction, salification reaction, coordination reaction, aldimine condensation reaction, cyclization reaction and azide reaction. Many new energetic compounds were purposely obtaine
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11

BERNARDI, R., B. NOVO, and G. RESNATI. "ChemInform Abstract: Reactivity of Perfluoro-(cis-2,3-dialkyloxaziridines) with Heteroaromatic Nitrogen Compounds." ChemInform 28, no. 16 (2010): no. http://dx.doi.org/10.1002/chin.199716173.

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12

Филатов, И. Е., В. В. Уварин та Д. Л. Кузнецов. "Исследование относительной реакционной способности ароматических соединений в воздухе под действием плазмы импульсного разряда". Письма в журнал технической физики 47, № 22 (2021): 9. http://dx.doi.org/10.21883/pjtf.2021.22.51718.18924.

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Based on the method of competing reactions, a method for determining the relative reactivity of aromatic vapors in relation to the plasma components of a pulsed corona discharge is developed. The parameters of the relative reactivity of aromatic compounds in the air and nitrogen stream were obtained using model mixtures based on benzene, toluene, and xylene with a content of 250-500 ppm. The effect of water vapor on the process is shown. The obtained data will be useful for optimizing the processes of plasma-chemical air purification from the vapors of toxic aromatic compounds.
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13

Kajal, Anu, Suman Bala, Neha Sharma, Sunil Kamboj, and Vipin Saini. "Therapeutic Potential of Hydrazones as Anti-Inflammatory Agents." International Journal of Medicinal Chemistry 2014 (March 4, 2014): 1–11. http://dx.doi.org/10.1155/2014/761030.

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Hydrazones are a special class of organic compounds in the Schiff base family. Hydrazones constitute a versatile compound of organic class having basic structure (R1R2C=NNR3R4). The active centers of hydrazone, that is, carbon and nitrogen, are mainly responsible for the physical and chemical properties of the hydrazones and, due to the reactivity toward electrophiles and nucleophiles, hydrazones are used for the synthesis of organic compound such as heterocyclic compounds with a variety of biological activities. Hydrazones and their derivatives are known to exhibit a wide range of interesting
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14

Zhu, Guang, Joseph M. Tanski, David G. Churchill, Kevin E. Janak, and Gerard Parkin. "The Reactivity of Mo(PMe3)6towards Heterocyclic Nitrogen Compounds: Transformations Relevant to Hydrodenitrogenation." Journal of the American Chemical Society 124, no. 46 (2002): 13658–59. http://dx.doi.org/10.1021/ja028512w.

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15

Degennaro, Leonardo, Rosmara Mansueto, Elisa Carenza, et al. "Nitrogen Dynamics and Reactivity of Chiral Aziridines: Generation of Configurationally Stable Aziridinyllithium Compounds." Chemistry - A European Journal 17, no. 18 (2011): 4992–5003. http://dx.doi.org/10.1002/chem.201003424.

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16

Fuchs, Hendrik, Zhaofeng Tan, Keding Lu, et al. "OH reactivity at a rural site (Wangdu) in the North China Plain: contributions from OH reactants and experimental OH budget." Atmospheric Chemistry and Physics 17, no. 1 (2017): 645–61. http://dx.doi.org/10.5194/acp-17-645-2017.

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Abstract. In 2014, a large, comprehensive field campaign was conducted in the densely populated North China Plain. The measurement site was located in a botanic garden close to the small town Wangdu, without major industry but influenced by regional transportation of air pollution. The loss rate coefficient of atmospheric hydroxyl radicals (OH) was quantified by direct measurements of the OH reactivity. Values ranged between 10 and 20 s−1 for most of the daytime. Highest values were reached in the late night with maximum values of around 40 s−1. OH reactants mainly originated from anthropogeni
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17

Cunha, Silvio, та Albert Kascheres. "On the Reactivity of α-(Triphenylphosphoranylidene)-benzylphenylketene with Nitrogen Compounds: Synthetic and Mechanistic Implications". Journal of the Brazilian Chemical Society 13, № 5 (2002): 687–91. http://dx.doi.org/10.1590/s0103-50532002000500025.

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18

Focante, Francesca, Pierluigi Mercandelli, Angelo Sironi, and Luigi Resconi. "Complexes of tris(pentafluorophenyl)boron with nitrogen-containing compounds: Synthesis, reactivity and metallocene activation." Coordination Chemistry Reviews 250, no. 1-2 (2006): 170–88. http://dx.doi.org/10.1016/j.ccr.2005.05.005.

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19

Lee, Jae Ryeong, Ikkyu Lee, Hee Young Shin, Jong Gwan Ahn, Dong Jin Kim, and Hun Saeng Chung. "Nitride-Related Compounds Preparation from Waste Aluminum Dross by Self-Propagating High-Temperature Process." Materials Science Forum 486-487 (June 2005): 297–300. http://dx.doi.org/10.4028/www.scientific.net/msf.486-487.297.

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Nitride-related compounds containing AlN and AlON were synthesized from aluminum dross using a combustion reaction, irrespective of the content of Al in Al-dross. The formation of AlON is induced by the exothermic reaction between Al and nitrogen. On the occasion of using high-grade dross, unreacted Al was detected in the combustion products. This may be originated from Al in the dross because Al in dross exists in the dispersed oxide layer. Therefore, its reactivity with nitrogen is relatively lower, compared to Al powder mixed with the dross in the beginning. It is noted that, on the occasio
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20

Fuchs, Hendrik, Anna Novelli, Michael Rolletter, et al. "Comparison of OH reactivity measurements in the atmospheric simulation chamber SAPHIR." Atmospheric Measurement Techniques 10, no. 10 (2017): 4023–53. http://dx.doi.org/10.5194/amt-10-4023-2017.

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Abstract. Hydroxyl (OH) radical reactivity (kOH) has been measured for 18 years with different measurement techniques. In order to compare the performances of instruments deployed in the field, two campaigns were conducted performing experiments in the atmospheric simulation chamber SAPHIR at Forschungszentrum Jülich in October 2015 and April 2016. Chemical conditions were chosen either to be representative of the atmosphere or to test potential limitations of instruments. All types of instruments that are currently used for atmospheric measurements were used in one of the two campaigns. The r
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21

Obuchi, Akira, Clemens Wögerbauer, René Köppel, and Alfons Baiker. "Reactivity of nitrogen containing organic intermediates in the selective catalytic reduction of NOx with organic compounds: a model study with tert-butyl substituted nitrogen compounds." Applied Catalysis B: Environmental 19, no. 1 (1998): 9–22. http://dx.doi.org/10.1016/s0926-3373(98)00053-8.

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22

Al-Saleh, Balkis, Mervat M. Abdelkhalik, Morsy A. El-Apasery, and Mohamed H. Elnagdi. "Studies with Condensed Thiophenes: Reactivity of Condensed Aminothiophenes toward Carbon and Nitrogen Electrophiles." Journal of Chemical Research 2005, no. 1 (2005): 23–26. http://dx.doi.org/10.3184/0308234053431103.

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The condensed aminothiophenes 5–7a,b react with 1,4-naphthoquinone in refluxing ethanol to yield products of addition followed by hydrogen sulfide elimination in a Diels–Alder type reaction. When the reaction is carried out under microwave irradiation a dipolar addition occurred affording products of substitution at C-l. Compounds 5–7a,b coupled with aromatic diazonium salts to yield arylazo derivatives 15 and 16 where coupling occurred at C-1. The condensed aminothiophenes 5–7a,b reacted with dimethylformamide dimethylacetal to yield amidines 17–19.
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23

Spicer, C. W., M. W. Holdren, R. M. Riggin, and T. F. Lyon. "Chemical composition and photochemical reactivity of exhaust from aircraft turbine engines." Annales Geophysicae 12, no. 10/11 (1994): 944–55. http://dx.doi.org/10.1007/s00585-994-0944-0.

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Abstract. Assessment of the environmental impact of aircraft emissions is required by planners and policy makers. Seveal areas of concern are: 1. exposure of airport workers and urban residents to toxic chemicals emitted when the engines operate at low power (idle and taxi) on the ground; 2. contributions to urban photochemical air pollution of aircraft volatile organic and nitrogen oxides emissions from operations around airports; and 3. emissions of nitrogen oxides and particles during high-altitude operation. The environmental impact of chemicals emitted from jet aircraft turbine engines ha
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24

Makarov, Arkady G., Tatiana D. Grayfer, Alexander Yu Makarov, Irina Yu Bagryanskaya, Vladimir G. Vasiliev та Andrey V. Zibarev. "Reactivity of extended chalcogen–nitrogen π-systems: compounds Ar–Se–N=S=N–Se–Ar". Mendeleev Communications 21, № 6 (2011): 320–22. http://dx.doi.org/10.1016/j.mencom.2011.11.009.

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25

Barluenga, Jose, Rosa Maria Canteli, and Josefa Florez. "Preparation and reactivity of new .beta.-nitrogen-functionalized vinylic organolithium compounds from secondary aliphatic allylamines." Journal of Organic Chemistry 59, no. 3 (1994): 602–6. http://dx.doi.org/10.1021/jo00082a017.

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26

Nagao, Hirotaka. "Redox Reactions of Ruthenium Complexes Bearing Pyridyl-containing Ligands and Reactivity Toward Nitrogen-containing Compounds." Bulletin of Japan Society of Coordination Chemistry 54 (2009): 22–37. http://dx.doi.org/10.4019/bjscc.54.22.

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27

Aricò, Fabio, and Pietro Tundo. "Mustard carbonate analogues." Pure and Applied Chemistry 88, no. 1-2 (2016): 3–16. http://dx.doi.org/10.1515/pac-2015-0604.

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AbstractSulfur and nitrogen (half-)mustard carbonate analogues are a new class of compounds, easily synthesized by methoxycarbonylation reaction of the parent alcohols with dialkyl carbonates. In this work, their reactivity as novel, green electrophiles is reported. Reactions have been conducted in autoclave conditions at high temperature (180°C), under pressure and in absence of any base, as well as, in neat at atmospheric pressure, lower temperature (150°C) and in the presence of a catalytic amount of a base. Several nucleophiles have been investigated resulting, in some cases, in unexpected
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28

Rakitin, Oleg A. "Synthesis and Reactivity of 3H-1,2-dithiole-3-thiones." Molecules 26, no. 12 (2021): 3595. http://dx.doi.org/10.3390/molecules26123595.

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3H-1,2-Dithiole-3-thiones are among the best studied classes of polysulfur-containing heterocycles due to the almost explosive recent interest in these compounds as sources of hydrogen sulfide as an endogenously produced gaseous signaling molecule. This review covers the recent developments in the synthesis of these heterocycles, including both well-known procedures and important novel transformations for building the 1,2-dithiole-3-thione ring. Diverse ring transformations of 3H-1,2-dithiole-3-thiones into various heterocyclic systems through 1,3-dipolar cycloaddition, replacement of one or t
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29

Ombito, Japheth O., та Girija S. Singh. "Recent Progress in Chemistry of β-Lactams". Mini-Reviews in Organic Chemistry 16, № 6 (2019): 544–67. http://dx.doi.org/10.2174/1570193x15666180914165303.

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The β-lactams constitute a well-known class of compounds having tremendous biological significance. Besides being a motif of biological interest, they serve as versatile synthons in organic chemistry. In fact, their easy accessibility in the laboratory by several methods combined with inherent reactivity of the β -lactam ring due to ring-strain places it among the most sought for substrate in the arsenal of synthetic organic chemists. Several chemical reagents, heat, and light promote its ring-opening, ring-expansions and rearrangement reactions yielding a wide variety of bio
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30

Miesch, Laurence, and Frédéric Beltran. "Tertiary Enamides as Versatile and Valuable Substrates to Reach Chemical Diversity." Synthesis 52, no. 17 (2020): 2497–511. http://dx.doi.org/10.1055/s-0040-1707403.

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Tertiary enamides display versatile reactivity and great stability compared to their enamine congeners. This review covers progress made in the development of new methods involving the enaminic reactivity of tertiary enamides with respect to the synthesis of complex nitrogen-containing compounds. A focus on the preparation of biologically active molecules is also presented. The syntheses reported herein are classified based on their reaction type. In addition, mechanistic insights are given for most of the new transformations.1 Introduction2 [2+2] Cycloadditions3 [4+2] Cycloadditions4 Electroc
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31

He, Wenxing, Xiaojun Tan, Nana Wang, and Hong Zhang. "Theoretical study on the mechanism of the cycloaddition reaction between ketenimine and hydrogen cyanide." Journal of the Serbian Chemical Society 81, no. 2 (2016): 187–95. http://dx.doi.org/10.2298/jsc150504091h.

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The cycloaddition reaction mechanism between interstellar molecules ketenimine and HCN has been investigated employing the second-order M?ller-Plesset perturbation theory (MP2) method in order to better understand the reactivity of nitrogenous cumulene ketenimine with carbon-nitrogen triple bond compound HCN. Geometry optimizations and vibrational analyses have been performed for the stationary points on the potential energy surfaces of the system. The calculated results show that it can be produced the five-membered cyclic carbene intermediates through pericyclic reaction processes between ke
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32

Monier, Mohamed, Doaa Abdel-Latif, Ahmed El-Mekabaty, Başak D. Mert, and Khaled M. Elattar. "Advances in the Chemistry of 6-6 Bicyclic Systems: Chemistry of Pyrido[3,4- d]pyrimidines." Current Organic Synthesis 16, no. 6 (2019): 812–54. http://dx.doi.org/10.2174/1570179416666190704113647.

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The aim of this work is to discuss the chemistry of pyrido[3,4-d]pyrimidines as one of the most important heterocyclic compounds with remarkable synthetic, biological and medical applications. In this overview, the chemistry of heterocyclic compounds incorporated the pyrido[3,4-d]pyrimidine scaffold as demonstrated by chemical reactions and different preparation processes. The anticipated compounds were synthesized from pyridine or pyrimidine compounds and a description of the reactivity of substituents attached to ring carbon and nitrogen atoms is discussed. On the other hand, the synthesis a
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33

Wittkamp, Florian, Esma Birsen Boydas, Michael Roemelt, and Ulf-Peter Apfel. "New Phosphorous-Based [FeFe]-Hydrogenase Models." Catalysts 10, no. 5 (2020): 522. http://dx.doi.org/10.3390/catal10050522.

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[FeFe]-hydrogenases have attracted research for more than twenty years as paragons for the design of new catalysts for the hydrogen evolution reaction (HER). The bridging dithiolate comprising a secondary amine as bridgehead is the key element for the reactivity of native [FeFe]-hydrogenases and was therefore the midpoint of hundreds of biomimetic hydrogenase models. However, within those mimics, phosphorous is barely seen as a central element in the azadithiolato bridge despite being the direct heavier homologue of nitrogen. We herein synthesized three new phosphorous based [FeFe]-hydrogenase
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34

Deady, LW. "Substitutent Effects in Non-Aromatic Nitrogen Heterocycles: Alkaline Hydrolysis of Methyl N-Methyl (oxo)dihydropyridinecarboxylates and Diaza Analogues." Australian Journal of Chemistry 38, no. 4 (1985): 637. http://dx.doi.org/10.1071/ch9850637.

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Ester hydrolysis studies on some isomeric methoxycarbonyl derivatives of N-methylpyridin-2- and 4-ones show that reaction rates are affected by the relative positions of CO2Me, =O and NMe functions in ways which could not be predicted. However, from limited result for analogous pyrimidine derivatives, it seems that reactivity in these polyfunctional compounds can be predicted from the pyridine data by assuming additivity of effects.
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35

Li, Zhijian, Sergey A. Nizkorodov, Hong Chen, Xiaohui Lu, Xin Yang, and Jianmin Chen. "Nitrogen-containing secondary organic aerosol formation by acrolein reaction with ammonia/ammonium." Atmospheric Chemistry and Physics 19, no. 2 (2019): 1343–56. http://dx.doi.org/10.5194/acp-19-1343-2019.

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Abstract. Ammonia-driven carbonyl-to-imine conversion is an important formation pathway to the nitrogen-containing organic compounds (NOCs) in secondary organic aerosols (SOAs). Previous studies have mainly focused on the dicarbonyl compounds as the precursors of light-absorbing NOCs. In this work, we investigated whether acrolein could also act as an NOC precursor. Acrolein is the simplest α, β-unsaturated mono-carbonyl compound, and it is ubiquitous in the atmosphere. Experiments probing multiphase reactions of acrolein as well as bulk aqueous-phase experiments were carried out to study the
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36

MELLER, A., and W. MARINGGELE. "ChemInform Abstract: Controlling Factors in the Formation and Reactivity of Boron-Nitrogen and Boron-Carbon Compounds." ChemInform 28, no. 36 (2010): no. http://dx.doi.org/10.1002/chin.199736335.

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37

Babaev, Elbay R. "ESTIMATION OF INTERRELATION BETWEEN STRUCTURE OF SOME NITROGEN-CONTAINING ALKYLARYL-SUBSTITUTED PHENOLS AND THEIR REACTIVITY AND FUNCTIONAL PROPERTIES." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 5 (2017): 51. http://dx.doi.org/10.6060/tcct.2017605.5569.

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The paper describes the results of the research of some N-containing 2,6-di-a-methylbenzylphenols as antioxidants, antimicrobial and antiwear additives to the lubricating oils. In the model reactions of oxidation of hydrocarbons it has been earlier shown the efficiency of some nitrogen-containing derivatives of α-methylbenzyl-substituted phenols. As it can be seen from the results of research of mechanism of inhibiting action of three 4-N-substituted aminomethyl-2,6-di-α-methylbenzylphenols they have approximate antiradical efficiency, К7=6-6.5.104 l/mol×s (60 °С), exceeding К7 of ionol (2.2·1
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38

Chung, Seung-Won, Jaejung Ko, Kwonil Park, Sungil Cho та Sang Ook Kang. "N,S-Chelating Amino-ortho-carboranethiolate Complexes of Rhodium and Iridium: Synthesis and Reactivity. X-Ray Crystal Structures of (η4-C8H12)Rh[(NMe2CH2)SC2B10H10] and (CO)2Rh[(NMe2CH2)SC2B10H10]". Collection of Czechoslovak Chemical Communications 64, № 5 (1999): 883–94. http://dx.doi.org/10.1135/cccc19990883.

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The reaction of [M(μ-Cl)(cod)]2 (M = Rh, Ir; cod = cycloocta-1,5-diene) with two equivalents of the lithium ortho-carboranethiolate derivative LiCabN,S 2 [LiCabN,S = closo-2-(dimethylaminomethyl)-1-(lithiumthiolato)-ortho-carborane] produced the four-coordinated metallacyclic compounds, CabN,SM(cod) 3 (M = Rh 3a, Ir 3b), in which the metal atom was stabilized via intramolecular N,S-coordination. These new compounds have been isolated in high yields and characterized by IR and NMR spectroscopy. The structure consists of an amino-ortho-carboranethiolate fragment bonded to (cod)Rh(I) via nitrogen
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39

Rincón, Angela G., Ana I. Calvo, Mathias Dietzel, and Markus Kalberer. "Seasonal differences of urban organic aerosol composition – an ultra-high resolution mass spectrometry study." Environmental Chemistry 9, no. 3 (2012): 298. http://dx.doi.org/10.1071/en12016.

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Environmental contextUnderstanding the molecular composition and chemical transformations of organic aerosols during atmospheric aging is a major challenge in atmospheric chemistry. Ultra-high resolution mass spectrometry can provide detailed information on the molecular composition of organic aerosols. Aerosol samples collected in summer and winter at an urban site are characterised and compared in detail with respect to the elemental composition of their components, especially nitrogen- and sulfur-containing compounds, and are discussed with respect to atmospheric formation processes. Abstra
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40

Edwards, P. M., M. J. Evans, K. L. Furneaux, et al. "OH reactivity in a South East Asian Tropical rainforest during the Oxidant and Particle Photochemical Processes (OP3) project." Atmospheric Chemistry and Physics Discussions 13, no. 2 (2013): 5233–78. http://dx.doi.org/10.5194/acpd-13-5233-2013.

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Abstract. OH reactivity, the reciprocal of its lifetime from reaction with its sinks, was measured for 12 days in April 2008 within a tropical rainforest on Borneo as part of the OP3 project. The maximum observed value was 83.8 ± 26.0 s−1 with the campaign averaged noon-time maximum being 29.1 ± 8.5 s−1. The maximum OH reactivity calculated using the campaign averaged noon-time concentrations of observed sinks was ~18 s−1, significantly less than the observations, consistent with other studies in similar environments. OH reactivity was dominated by reaction with isoprene.
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41

Pfeffer, Michel, Marc A. Rotteveel, Guy Le Borgne, and Jean Fischer. "Reactivity of cyclopalladated compounds. 28. Alkyne reactions with the cyclopalladated 8-methylquinoline ligand. Synthesis of novel heterocyclic compounds with a bridgehead nitrogen." Journal of Organic Chemistry 57, no. 7 (1992): 2147–54. http://dx.doi.org/10.1021/jo00033a042.

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42

Milani, Barbara, Angelica Marson, Ennio Zangrando, Giovanni Mestroni, Jan Meine Ernsting, and Cornelis J. Elsevier. "New monocationic methylpalladium(II) compounds with several bidentate nitrogen-donor ligands: synthesis, characterisation and reactivity with CO." Inorganica Chimica Acta 327, no. 1 (2002): 188–201. http://dx.doi.org/10.1016/s0020-1693(01)00700-9.

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43

Ghereg, Dumitru, Heinz Gornitzka, Jean Escudié, and Sonia Ladeira. "The Reactivity of Phosphagermaallene Tip(t-Bu)Ge═C═PMes* with Doubly and Triply Bonded Nitrogen Compounds." Inorganic Chemistry 49, no. 22 (2010): 10497–505. http://dx.doi.org/10.1021/ic1014913.

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44

BARLUENGA, J., R. M. CANTELI та J. FLOREZ. "ChemInform Abstract: Preparation and Reactivity of New β-Nitrogen-Functionalized Vinylic Organolithium Compounds from Secondary Aliphatic Allylamines." ChemInform 25, № 26 (2010): no. http://dx.doi.org/10.1002/chin.199426089.

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45

Fish, Richard H., Kim Tae-Jeong, Joanne L. Stewart, John H. Bushweller, Robert K. Rosen, and Wisner Jean Dupon. "Synthesis of dimetallaazacyclobutenes via reaction of polynuclear heteroaromatic nitrogen compounds with triruthenium dodecacarbonyl: reactivity and structural elucidation." Organometallics 5, no. 11 (1986): 2193–98. http://dx.doi.org/10.1021/om00142a005.

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46

Tiezza, Marco Dalla, Giovanni Ribaudo, and Laura Orian. "Organodiselenides: Organic Catalysis and Drug Design Learning from Glutathione Peroxidase." Current Organic Chemistry 23, no. 13 (2019): 1381–402. http://dx.doi.org/10.2174/1385272822666180803123137.

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Abstract:
Organodiselenides are an important class of compounds characterized by the presence of two adjacent covalently bonded selenium nuclei. Among them, diaryldiselenides and their parent compound diphenyl diselenide attract continuing interest in chemistry as well as in close disciplines like medicinal chemistry, pharmacology and biochemistry. A search in SCOPUS database has revealed that in the last three years 105 papers have been published on the archetypal diphenyl diselenide and its use in organic catalysis and drug tests. The reactivity of the Se-Se bond and the redox properties of selenium m
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47

Shetgaonkar, Samata E., Shiva Prasad Kollur, Renjith Raveendran Pillai, et al. "Investigation of Pharmaceutical Importance of 2H-Pyran-2-One Analogues via Computational Approaches." Symmetry 13, no. 9 (2021): 1619. http://dx.doi.org/10.3390/sym13091619.

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Highly functionalized spirocyclic ketals were synthesized through asymmetric oxidative spirocyclization via carbanion-induced ring transformation of 2H-pyran-2-ones with 1,4-cyclohexandione monoethyleneketal under alkaline conditions. Further acidic-hydrolysis of obtained spirocyclic ketals yields highly substituted 2-tetralone in good yield. Computational analysis based on the DFT calculations and MD simulations has been performed in order to predict and understand global and local reactivity properties of newly synthesized derivatives. DFT calculations covered fundamental reactivity descript
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48

Monier, Mohamed, Doaa Abdel-Latif, Ahmed El-Mekabaty, and Khaled M. Elattar. "Bicyclic 6 + 6 Systems: Advances in the Chemistry of Heterocyclic Compounds Incorporated Pyrimido[1,2-a]Pyrimidine Skeleton." Mini-Reviews in Organic Chemistry 17, no. 6 (2020): 717–39. http://dx.doi.org/10.2174/1389557519666190925161145.

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The present review has highlighted the chemistry of pyrimido[1,2-a]pyrimidine compounds as one of the most important classes of heterocyclic systems. The main sections include: (1) The synthesis of pyrimido[1,2-a]pyrimidines, (2) reactivity of the substituents attached to the carbon and nitrogen atoms of the ring and (3) biological applications. A discussion demonstrated that the proposed mechanisms of unexpected synthetic routes were intended. The purpose of this review is to provide an overview of the chemistry of pyrimido[1,2-a]pyrimidines to date, in which the compounds should be widely ap
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Lyu, Hairong, Ilia Kevlishvili, Xuan Yu, Peng Liu, and Guangbin Dong. "Boron insertion into alkyl ether bonds via zinc/nickel tandem catalysis." Science 372, no. 6538 (2021): 175–82. http://dx.doi.org/10.1126/science.abg5526.

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Mild methods to cleave the carbon-oxygen (C−O) bond in alkyl ethers could simplify chemical syntheses through the elaboration of these robust, readily available precursors. Here we report that dibromoboranes react with alkyl ethers in the presence of a nickel catalyst and zinc reductant to insert boron into the C−O bond. Subsequent reactivity can effect oxygen-to-nitrogen substitution or one-carbon homologation of cyclic ethers and more broadly streamline preparation of bioactive compounds. Mechanistic studies reveal a cleavage-then-rebound pathway via zinc/nickel tandem catalysis.
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50

Mather, Tamsin A. "Volcanism and the atmosphere: the potential role of the atmosphere in unlocking the reactivity of volcanic emissions." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 366, no. 1885 (2008): 4581–95. http://dx.doi.org/10.1098/rsta.2008.0152.

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Recent measurements of reactive trace gas species in volcanic plumes have offered intriguing hints at the chemistry occurring in the hot environment at volcanic vents. This has led to the recognition that volcanic vents should be regarded not only as passive sources of volcanic gases to the atmosphere, but also as ‘reaction vessels’ that unlock otherwise inert volcanic and atmospheric gas species. The atypical conditions created by the mixing of ambient atmosphere with the hot gases emitted from magma give rise to elevated concentrations of otherwise unexpected chemical compounds. Rapid coolin
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