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Journal articles on the topic 'Hydride trapping'

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Published: 4 June 2021
Last updated: 7 February 2022

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1

Howard, A. G., and S. D. W. Comber. "Hydride-trapping techniques for the speciation of arsenic." Mikrochimica Acta 109, no. 1-4 (January 1992): 27–33. http://dx.doi.org/10.1007/bf01243206.

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2

Romero, Vanesa, Laura Vilas, Isela Lavilla, and Carlos Bendicho. "Speciation of inorganic As and Sb in natural waters by total reflection X-ray fluorescence following selective hydride generation and trapping onto quartz reflectors coated with nanostructured Pd." Journal of Analytical Atomic Spectrometry 32, no. 9 (2017): 1705–12. http://dx.doi.org/10.1039/c7ja00113d.

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3

Teichert, Johannes F., and Lea T. Brechmann. "Catch It If You Can: Copper-Catalyzed (Transfer) Hydrogenation Reactions and Coupling Reactions by Intercepting Reactive Intermediates Thereof." Synthesis 52, no. 17 (July 13, 2020): 2483–96. http://dx.doi.org/10.1055/s-0040-1707185.

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The key reactive intermediate of copper(I)-catalyzed alkyne semihydrogenations is a vinylcopper(I) complex. This intermediate can be exploited as a starting point for a variety of trapping reactions. In this manner, an alkyne semihydrogenation can be turned into a dihydrogen­-mediated coupling reaction. Therefore, the development of copper-catalyzed (transfer) hydrogenation reactions is closely intertwined with the corresponding reductive trapping reactions. This short review highlights and conceptualizes the results in this area so far, with H2-mediated carbon–carbon and carbon–heteroatom bond-forming reactions emerging under both a transfer hydrogenation setting as well as with the direct use of H2. In all cases, highly selective catalysts are required that give rise to atom-economic multicomponent coupling reactions with rapidly rising molecular complexity. The coupling reactions are put into perspective by presenting the corresponding (transfer) hydrogenation processes first.1 Introduction: H2-Mediated C–C Bond-Forming Reactions2 Accessing Copper(I) Hydride Complexes as Key Reagents for Coupling Reactions; Requirements for Successful Trapping Reactions 3 Homogeneous Copper-Catalyzed Transfer Hydrogenations4 Trapping of Reactive Intermediates of Alkyne Transfer Semi­hydrogenation Reactions: First Steps Towards Hydrogenative Alkyne Functionalizations 5 Copper(I)-Catalyzed Alkyne Semihydrogenations6 Copper(I)-Catalyzed H2-Mediated Alkyne Functionalizations; Trapping of Reactive Intermediates from Catalytic Hydrogenations6.1 A Detour: Copper(I)-Catalyzed Allylic Reductions, Catalytic Generation of Hydride Nucleophiles from H2 6.2 Trapping with Allylic Electrophiles: A Copper(I)-Catalyzed Hydro­allylation Reaction of Alkynes 6.3 Trapping with Aryl Iodides7 Conclusion
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4

Bönisch, Matthias, Michael Zehetbauer, Maciej Krystian, Daria Setman, and Gerhard Krexner. "Stabilization of Lattice Defects in HPT-Deformed Palladium Hydride." Materials Science Forum 667-669 (December 2010): 427–32. http://dx.doi.org/10.4028/www.scientific.net/msf.667-669.427.

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Recent investigations on palladium hydride (Pd-H) showed, for the first time, evidence of formation of vacancy-hydrogen (Vac-H) clusters during Severe Plastic Deformation (SPD) effected by High Pressure Torsion (HPT). Vacancy concentrations produced in Pd-H by this method are extraordinarily high. DSC-scans show that the thermal stability range of vacancies is extended by about 150K due to trapping of hydrogen leading to the formation of vacancy-hydrogen clusters. Recent experiments give evidence that the mobility of the H atoms and/or the vacancies is conditional for the formation of Vac-H clusters during HPT. Results furthermore indicate defect stabilization by hydrogen trapping not only for vacancy-type defects but also for dislocations and grain boundaries.
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5

Mohamed, Mustafa, and Michael A. Brook. "Photolysis of tris(trimethylsilyl)silane: trapping of sisyl radicals." Canadian Journal of Chemistry 78, no. 11 (November 1, 2000): 1357–62. http://dx.doi.org/10.1139/v00-085.

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The photolysis of tris(trimethylsilyl)silane (TTMSS) was studied in the absence and in the presence of added trapping agents such as alkenes and alcohols. It was found that, unlike the case with pyrolysis, silyl radicals rather than silylenes are produced. They may be efficiently trapped with alkenes, to give the hydrosilylation products, but not with alcohols. The major product from the photolysis of TTMSS in the absence of added trapping agent (or with alcohols as trapping agents) was tetrakis(trimethylsilyl)silane. Possible mechanisms to account for the photoproducts are presented.Key words: hydrosilane, photolysis, silylenes, silyl radical, sisyl hydride.
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6

Dočekal, B., J. Dědina, and V. Krivan. "Radiotracer investigation of hydride trapping efficiency within a graphite furnace." Spectrochimica Acta Part B: Atomic Spectroscopy 52, no. 6 (June 1997): 787–94. http://dx.doi.org/10.1016/s0584-8547(96)01605-9.

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7

Ma, Baoguang, Jens Henrik Hansen, Søren Hvilsted, and Anne Ladegaard Skov. "Control of PDMS crosslinking by encapsulating a hydride crosslinker in a PMMA microcapsule." RSC Adv. 4, no. 88 (2014): 47505–12. http://dx.doi.org/10.1039/c4ra07513g.

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8

Tsalev, D. L., and P. B. Mandjukov. "Electrothermal atomic absorption spectrophotometric determination of hydride-forming elements after simultaneous preconcentration by hydride generation and trapping hydrides in cerium(iv)-potassium iodide absorbing solution." Microchemical Journal 35, no. 1 (February 1987): 83–93. http://dx.doi.org/10.1016/0026-265x(87)90202-5.

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9

Alvarez, M., Daniel García-Vivó, Estefanía Huergo, and Miguel Ruiz. "Trapping of an Heterometallic Unsaturated Hydride: Structure and Properties of the Ammonia Complex [MoMnCp(μ-H)(μ-PPh2)(CO)5(NH3)]." Inorganics 6, no. 4 (November 24, 2018): 125. http://dx.doi.org/10.3390/inorganics6040125.

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Complexes displaying multiple bonds between different metal atoms have considerable synthetic potential because of the combination of the high electronic and coordinative unsaturation associated to multiple bonds with the intrinsic polarity of heterometallic bonds but their number is scarce and its chemistry has been relatively little explored. In a preliminary study, our attempted synthesis of the unsaturated hydrides [MoMCp(μ-H)(μ-PR2)(CO)5] from anions [MoMCp(μ-PR2)(CO)5]− and (NH4)PF6 yielded instead the ammonia complexes [MoMCp(μ-H)(μ-PR2)(CO)5(NH3)] (M = Mn, R = Ph; M = Re, R = Cy). We have now examined the structure and behaviour of the MoMn complex (Mo–Mn = 3.087(3) Å) and found that it easily dissociates NH3 (this requiring some 40 kJ/mol, according to DFT calculations), to yield the undetectable unsaturated hydride [MoMnCp(μ-H)(μ-PPh2)(CO)5] (computed Mo–Mn = 2.796 Å), the latter readily adding simple donors L such as CNR (R = Xyl, p-C6H4OMe) and P(OMe)3, to give the corresponding electron-precise derivatives [MoMnCp(μ-H)(μ-PPh2)(CO)5(L)]. Thus the ammonia complex eventually behaves as a synthetic equivalent of the unsaturated hydride [MoMnCp(μ-H)(μ-PPh2)(CO)5]. The isocyanide derivatives retained the stereochemistry of the parent complex (Mo–Mn = 3.0770(4) Å when R = Xyl) but a carbonyl rearrangement takes place in the reaction with phosphite to leave the entering ligand trans to the PPh2 group, a position more favoured on steric grounds.
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10

Ivanenko, Natalya B., Nikolay D. Solovyev, Anatoly A. Ivanenko, and Denis V. Navolotskii. "Biological monitoring of arsenic pollution based on whole blood arsenic atomic absorption assessment with in situ hydride trapping." J. Anal. At. Spectrom. 29, no. 10 (2014): 1850–57. http://dx.doi.org/10.1039/c4ja00130c.

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11

Martin, F., FM Corrigan, Ofx Donard, J. Kelly, Jao Besson, and DF Horrobin. "Organotin compounds in trimethyltin-treated rats and in human brain in Alzheimer's Disease." Human & Experimental Toxicology 16, no. 9 (September 1997): 512–15. http://dx.doi.org/10.1177/096032719701600906.

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As blood tin concentrations are elevated in Alzheimer's disease and as some low molecular weight organotin compounds are neurotoxic, we have attempted to detect organotins in brain in Alzheimer's Disease. First we measured the concentration of trimethyltin (TMT) in the brains of rats which had been exposed to memory- impairing concentrations of TMT and, as the method of linking hydride generation, cryogenic trapping, gas chromatographic separation and atomic absorption spec trophotometric detection permitted the measurements of organotin compounds when the total tin was greater than 0.2 nanograms, we applied these techniques to human brain tissue, some of which showed neuropathological evidence of Alzheimer's Disease. No low molecular weight organotin compounds were detected in the human brain tissue, but it is possible that tin may be complexed with large organic molecules, the hydrides of which would not be volatile, but which could be identified by liquid chromatography.
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12

Vassie, L. H., and H. H. Telle. "Radiative Lifetimes and Collision Processes in Sodium-Rare Gas and Sodium-Hydrogen Systems." Laser Chemistry 15, no. 1 (January 1, 1994): 1–19. http://dx.doi.org/10.1155/1994/74032.

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Investigations of the collisional interactions between sodium atoms in the 32P states and helium and hydrogen gases are described. Studies of collision-induced mixing and quenching interactions have been carried out under conditions where chemical reaction to produce sodium hydride is possible. Thus the sodium number derivatives are sufficient for radiation trapping to occur. This is in contrast to virtually all previous investigations in which conditions were such that this effect need not be considered. The intensity and temporal behaviour of laser induced fluorescence (LIF) resulting from the photoexcitation of the sodium 32P states is monitored as a function of foreign gas pressure. Whilst many of the features observed are to be expected, results show how radiation trapping strongly influences cross-section determination. The need for a more rigorous treatment of collision cross-sections under these conditions, which are often more realistic than the ‘ideal’ trapping free situations, is demonstrated.
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13

Šı́ma, Jan, and Petr Rychlovský. "Electrochemical selenium hydride generation with in situ trapping in graphite tube atomizers." Spectrochimica Acta Part B: Atomic Spectroscopy 58, no. 5 (May 2003): 919–30. http://dx.doi.org/10.1016/s0584-8547(03)00035-1.

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14

Ertaş, Nusret, Zikri Arslan, and Julian F. Tyson. "Determination of lead by hydride generation atom trapping flame atomic absorption spectrometry." J. Anal. At. Spectrom. 23, no. 2 (2008): 223–28. http://dx.doi.org/10.1039/b712126a.

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15

Zheng, Chengbin, Ralph E. Sturgeon, and Xiandeng Hou. "Thin film hydride generation: determination of ultra-trace copper by flow injection in situ hydride trapping graphite furnace AAS." Journal of Analytical Atomic Spectrometry 25, no. 7 (2010): 1159. http://dx.doi.org/10.1039/c002360d.

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16

Průša, Libor, Jiří Dědina, and Jan Kratzer. "Ultratrace determination of tin by hydride generation in-atomizer trapping atomic absorption spectrometry." Analytica Chimica Acta 804 (December 2013): 50–58. http://dx.doi.org/10.1016/j.aca.2013.10.015.

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17

Toth, M., and M. R. Phillips. "Contrast formation mechanisms in the environmental scanning electron microscope." Microscopy and Microanalysis 5, S2 (August 1999): 274–75. http://dx.doi.org/10.1017/s1431927600014690.

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Uncoated, non-conductive samples can be imaged and analyzed in the environmental scanning electron microscope (ESEM) due to effective charge neutralization at the sample surface by ionized gas molecules. Under some gas pressure and electron dose conditions, ESEM images of uncoated, poorly conductive samples often contain contrast not present in secondary or backscattered electron images of the (coated) samples obtained in conventional SEMs. It has been proposed that the contrast is related to charge trapping at defects and impurities. It has also been suggested that UV cathodoluminescence (CL) may contribute to contrast in the ESEM. In this paper, we present experimental evidence of contrast formation in the ESEM due to charge trapping in Dy doped zircon, electron trapping at oxygen vacancies in sapphire and the absence of signal generation by 360nm UV CL.The specimens used in this study were (i) cross-sectioned Titanium in-diffusion doped sapphire single crystal, (ii) Dy doped synthetic Zircon7 and (iii) 43 μm epitaxial GaN grown on c-pane sapphire by hydride vapor phase epitaxy.
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18

Wake, Bronwyn D., Edward C. V. Butler, Alison M. Featherstone, Patti Virtue, Bernard Averty, and Pierre Michel. "Determination of Inorganic Selenium Species in Marine Waters by Hydride Generation - AFS." Australian Journal of Chemistry 57, no. 10 (2004): 937. http://dx.doi.org/10.1071/ch04072.

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A method based on hydride generation with cryogenic trapping and atomic fluorescence detection was developed that is capable of determining both inorganic Se species (SeIV and SeVI) while at sea. Evaluation of the system for optimal performance was made for each stage of the analysis and detection sequence, as well as for the SeVI reduction step. A detection limit of 0.4 ng L−1 Se in a 10 mL sample was achieved using this method. Precision was better than 3.5% for 25, 100, and 1000 ng L−1 SeIV standard solutions. Accuracy was determined by recovery studies using natural samples and a certified reference seawater (NASS-5).
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19

Shuttler, Ian L., Michaela Feuerstein, and Gerhard Schlemmer. "Communication. Long-term stability of a mixed palladium–iridium trapping reagent for in situ hydride trapping within a graphite electrothermal atomizer." J. Anal. At. Spectrom. 7, no. 8 (1992): 1299–301. http://dx.doi.org/10.1039/ja9920701299.

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20

Matusiewicz, Henryk, and Magdalena Krawczyk. "Determination of tellurium by hydride generation with in situ trapping flame atomic absorption spectrometry." Spectrochimica Acta Part B: Atomic Spectroscopy 62, no. 3 (March 2007): 309–16. http://dx.doi.org/10.1016/j.sab.2006.12.003.

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21

Alp, Orkun, and Nusret Ertaş. "In situ trapping of antimony hydride on iridium-coated tungsten coil and interference studies." Journal of Analytical Atomic Spectrometry 23, no. 7 (2008): 976. http://dx.doi.org/10.1039/b801451e.

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22

Kratzer, Jan, and Jiři Dědina. "Arsine and selenium hydride trapping in a novel quartz device for atomic-absorption spectrometry." Analytical and Bioanalytical Chemistry 388, no. 4 (January 4, 2007): 793–800. http://dx.doi.org/10.1007/s00216-006-1048-3.

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23

Alp, Orkun, and Nusret Ertaş. "In-situ trapping arsenic hydride on tungsten coil and comparing interference effect of some hydride forming elements using different types of atomizers." Microchemical Journal 128 (September 2016): 108–12. http://dx.doi.org/10.1016/j.microc.2016.03.021.

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24

Casey, Charles P., Galina A. Bikzhanova, Qiang Cui, and Ilia A. Guzei. "Reduction of Imines by Hydroxycyclopentadienyl Ruthenium Hydride: Intramolecular Trapping Evidence for Hydride and Proton Transfer Outside the Coordination Sphere of the Metal." Journal of the American Chemical Society 127, no. 40 (October 2005): 14062–71. http://dx.doi.org/10.1021/ja053956o.

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25

Shams, Alireza, Narges Ashraf, Mohammad Hossein Arbab-Zavar, and Mahboubeh Masrournia. "Ultra-trace determination of thallium by electrochemical hydride generation using efficient tungsten electrodes followed by in situ trapping on a graphite tube and detection by electrothermal atomic absorption spectrometry." Journal of Analytical Atomic Spectrometry 32, no. 11 (2017): 2173–81. http://dx.doi.org/10.1039/c7ja00145b.

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26

Xi, Maoyang, Rui Liu, Peng Wu, Kailai Xu, Xiandeng Hou, and Yi Lv. "Atomic absorption spectrometric determination of trace tellurium after hydride trapping on platinum-coated tungsten coil." Microchemical Journal 95, no. 2 (July 2010): 320–25. http://dx.doi.org/10.1016/j.microc.2010.01.009.

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27

Barbosa Jr., Fernando, Samuel Simião de Souza, and Francisco J. Krug. "In situ trapping of selenium hydride in rhodium-coated tungsten coil electrothermal atomic absorption spectrometry." J. Anal. At. Spectrom. 17, no. 4 (2002): 382–88. http://dx.doi.org/10.1039/b111129a.

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28

van Cleuvenbergen, Rudy J. A., Willy E. van Mol, and Fred C. Adams. "Arsenic speciation in water by hydride cold trapping-quartz furnace atomic absorption spectrometry: an evaluation." Journal of Analytical Atomic Spectrometry 3, no. 1 (1988): 169. http://dx.doi.org/10.1039/ja9880300169.

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29

Matusiewicz, H., and R. E. Sturgeon. "Atomic spectrometric detection of hydride forming elements following in situ trapping within a graphite furnace." Spectrochimica Acta Part B: Atomic Spectroscopy 51, no. 4 (March 1996): 377–97. http://dx.doi.org/10.1016/0584-8547(95)01419-5.

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30

Furdíková, Zuzana, and Bohumil Dočekal. "Trapping interference effects of arsenic, antimony and bismuth hydrides in collection of selenium hydride within iridium-modified transversally-heated graphite tube atomizer." Spectrochimica Acta Part B: Atomic Spectroscopy 64, no. 4 (April 2009): 323–28. http://dx.doi.org/10.1016/j.sab.2009.03.001.

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31

Niedzielski, P., M. Siepak, and B. Dudzińska-Huczuk. "Hydride generation atomic absorption spectrometry with insitu graphite tube trapping for the determination of Se (IV) and Se (VI) in baltic sea water samples." Open Chemistry 1, no. 3 (September 1, 2003): 314–24. http://dx.doi.org/10.2478/bf02476232.

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AbstractThis paper reports the results of an optimisation study for a procedure to determine the total selenium and its inorganic species, Se(IV) and Se(VI) using atomic absorption spectrometry combined with hydride generation and in-situ trapping of the analyte on the inner walls of the graphite tube. With the use of the proposed modification, a detection limit (3σ) of 0.018 ng/ml is achieved. This paper presents exemplary results, according to the proposed procedure, for selenium determination in samples of marine water. The concentrations of selenium in the samples ranged from <0.02 ng/ml to 0.16ng/ml of Se(IV) and from <0.02 ng/ml to 0.10 ng/ml of Se(VI).
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32

Liao, Yi-Ping, Guang Chen, Du Yan, An-Mo Li, and Zhe-Ming Ni. "Investigation of thallium hydride generation using in situ trapping in graphite tube by atomic absorption spectrometry." Analytica Chimica Acta 360, no. 1-3 (March 1998): 209–14. http://dx.doi.org/10.1016/s0003-2670(98)00005-1.

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33

Donohoe, Timothy J, Oliver Williams, and Gwydion H Churchill. "Hydride Shift Generated Oxonium Ions: Evidence for Mechanism and Intramolecular Trapping Experiments to Formtrans THF Derivatives." Angewandte Chemie 120, no. 15 (March 31, 2008): 2911–13. http://dx.doi.org/10.1002/ange.200705340.

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34

Donohoe, Timothy J, Oliver Williams, and Gwydion H Churchill. "Hydride Shift Generated Oxonium Ions: Evidence for Mechanism and Intramolecular Trapping Experiments to Formtrans THF Derivatives." Angewandte Chemie International Edition 47, no. 15 (March 31, 2008): 2869–71. http://dx.doi.org/10.1002/anie.200705340.

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35

Golden, Emily, Amir Karton, and Alice Vrielink. "High-resolution structures of cholesterol oxidase in the reduced state provide insights into redox stabilization." Acta Crystallographica Section D Biological Crystallography 70, no. 12 (November 22, 2014): 3155–66. http://dx.doi.org/10.1107/s139900471402286x.

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Cholesterol oxidase (CO) is a flavoenzyme that catalyzes the oxidation and isomerization of cholesterol to cholest-4-en-3-one. The reductive half reaction occursviaa hydride transfer from the substrate to the FAD cofactor. The structures of CO reduced with dithionite under aerobic conditions and in the presence of the substrate 2-propanol under both aerobic and anaerobic conditions are presented. The 1.32 Å resolution structure of the dithionite-reduced enzyme reveals a sulfite molecule covalently bound to the FAD cofactor. The isoalloxazine ring system displays a bent structure relative to that of the oxidized enzyme, and alternate conformations of a triad of aromatic residues near to the cofactor are evident. A 1.12 Å resolution anaerobically trapped reduced enzyme structure in the presence of 2-propanol does not show a similar bending of the flavin ring system, but does show alternate conformations of the aromatic triad. Additionally, a significant difference electron-density peak is observed within a covalent-bond distance of N5 of the flavin moiety, suggesting that a hydride-transfer event has occurred as a result of substrate oxidation trapping the flavin in the electron-rich reduced state. The hydride transfer generates a tetrahedral geometry about the flavin N5 atom. High-level density-functional theory calculations were performed to correlate the crystallographic findings with the energetics of this unusual arrangement of the flavin moiety. These calculations suggest that strong hydrogen-bond interactions between Gly120 and the flavin N5 centre may play an important role in these structural features.
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Dočekal, Bohumil, Seref Gücer, and Anna Selecká. "Trapping of hydride forming elements within miniature electrothermal devices: part I. investigation of collection of arsenic and selenium hydrides on a molybdenum foil strip." Spectrochimica Acta Part B: Atomic Spectroscopy 59, no. 4 (April 2004): 487–95. http://dx.doi.org/10.1016/j.sab.2003.11.004.

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Krejčí, Pavel, Bohumil Dočekal, and Zuzana Hrušovská. "Trapping of hydride forming elements within miniature electrothermal devices. Part 3. Investigation of collection of antimony and bismuth on a molybdenum foil strip following hydride generation." Spectrochimica Acta Part B: Atomic Spectroscopy 61, no. 4 (April 2006): 444–49. http://dx.doi.org/10.1016/j.sab.2006.03.006.

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38

Maratta, Ariel, Mariano Acosta, Luis D. Martinez, Pablo H. Pacheco, and Raúl A. Gil. "Ultratrace arsenic determination through hydride trapping on oxidized multiwall carbon nanotubes coupled to electrothermal atomic absorption spectrometry." Journal of Analytical Atomic Spectrometry 28, no. 6 (2013): 916. http://dx.doi.org/10.1039/c3ja30385c.

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39

Roberts, J. C., and J. A. Pincock. "The photochemistry of 1-(3,5-dimethoxyphenyl)-2-(4-methoxyphenyl)ethyl ethanoate in alcohol solvents: A search for carbocation rearrangements." Canadian Journal of Chemistry 81, no. 6 (June 1, 2003): 709–22. http://dx.doi.org/10.1139/v03-072.

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The photochemistry of the title compound 1 in methanol and 2,2,2-trifluoroethanol has been examined. In both solvents two ether products were obtained: one (18) resulting from trapping of the carbocation 2 (expected from photosolvolysis of 1), and the other (19) from the carbocation 3 (expected after rearrangement by hydride migration of cation 2). The substituted trans- and cis-stilbene derivatives 20 and 21 were also primary photoproducts. Analysis of product yields as a function of time revealed that the ether product 19 was formed by secondary photolysis of the stilbene derivatives, presumably by a pathway involving excited state protonation. Nanosecond laser flash photolysis results demonstrated that substituted trans-stilbene 20 was produced on the same time scale as the laser pulse.Key words: ester photochemistry, stilbene photoadditions, carbocation rearrangements.
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40

Chambers, Jeffrey D., Jason Crawford, Haydn W. R. Williams, Claude Dufresne, John Scheigetz, Michael A. Bernstein, and Cheuk K. Lau. "Reactions of 2-phenyl-4H-1,3,2-benzodioxaborin, a stable ortho-quinone methide precursor." Canadian Journal of Chemistry 70, no. 6 (June 1, 1992): 1717–32. http://dx.doi.org/10.1139/v92-216.

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Thermolysis of 1-phenyl-4H-1,3,2-benzodioxaborins generated the corresponding ortho-quinone methides, which were found to undergo intermolecular cycloaddition reactions with ethyl vinyl ether, dihydropyran, β-methylstyrene, cyclohexene, and 1-ethoxy-1-z-trimethylsiloxy-1-propenes to give various substituted chromans. Intramolecular trapping of the quinone methides with an olefin led to the syntheses of several analogs of tetrahydrocannabinols. ortho-Quinone methides, generated by treatment of the 2-phenyl-4H-1,3,2-benzodioxaborins with a Lewis acid, react with various nucleophiles to give the corresponding 1,4-addition products. Thus, alkyl and aryl thiols, alcohols, amine, hydride, allyl trimethylsilane, acetophenone, and diethylmalonate as well as some aryl compounds react with the quinone methide to give various 2-substituted phenols. Intramolecular reaction of the quinone methide with an aryl group led to the preparation of some 4-phenylchromans and tetralins.
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41

Tyson, Julian F., Nils G. Sundin, Christopher P. Hanna, and Susan A. McIntosh. "Determination of Se in urine by flow injection hydride generation electrothermal atomic absorption spectrometry with in-atomizer trapping." Spectrochimica Acta Part B: Atomic Spectroscopy 52, no. 12 (October 1997): 1773–81. http://dx.doi.org/10.1016/s0584-8547(97)00074-8.

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42

Oppolzer, Wolfgang, and Giovanni Poli. "Asymmetric induction at C(β) and C(α) of N-enoyl sultams by 1,4-hydride addition/enolate trapping." Tetrahedron Letters 27, no. 39 (January 1986): 4717–20. http://dx.doi.org/10.1016/s0040-4039(00)85046-7.

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Chen, Piaopiao, Yujia Deng, Kuncheng Guo, Xiaoming Jiang, Chengbin Zheng, and Xiandeng Hou. "Flow injection hydride generation for on-atomizer trapping: Highly sensitive determination of cadmium by tungsten coil atomic absorption spectrometry." Microchemical Journal 112 (January 2014): 7–12. http://dx.doi.org/10.1016/j.microc.2013.09.009.

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MATUSIEWICZ, Henryk, and Magdalena KRAWCZYK. "On-line Hyphenation of Hydride Generation with in situ Trapping Flame Atomic Absorption Spectrometry for Arsenic and Selenium Determination." Analytical Sciences 22, no. 2 (2006): 249–53. http://dx.doi.org/10.2116/analsci.22.249.

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Erber, D. "Investigations for the determination of lead by in situ hydride trapping within a graphite electrothermal atomizer for routine analysis." Talanta 42, no. 7 (July 1995): 927–36. http://dx.doi.org/10.1016/0039-9140(95)01517-f.

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DESOUZA, S., D. SANTOSJR, F. KRUG, and F. BARBOSAJR. "Exploiting in situ hydride trapping in tungsten coil atomizer for Se and As determination in biological and water samples." Talanta 73, no. 3 (September 30, 2007): 451–57. http://dx.doi.org/10.1016/j.talanta.2007.04.031.

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Li, Fangshi, Erich Rossipal, and Kurt J. Irgolic. "Determination of Selenium in Human Milk by Hydride Cold-Trapping Atomic Absorption Spectrometry and Calculation of Daily Selenium Intake." Journal of Agricultural and Food Chemistry 47, no. 8 (August 1999): 3265–68. http://dx.doi.org/10.1021/jf990268d.

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Matusiewicz, H., and M. Krawczyk. "Determination of Germanium and Tin and Inorganic Tin Species by Hydride Generation in Situ Trapping Flame Atomic Absorption Spectrometry." Analytical Letters 43, no. 16 (October 12, 2010): 2543–62. http://dx.doi.org/10.1080/00032711003725631.

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Garbo?, S?awomir, Ewa Bulska, and Adam Hulanicki. "The effect of palladium modifier on the efficiency of antimony hydride trapping in graphite furnace atomic absorption spectrometry (AAS)." Fresenius' Journal of Analytical Chemistry 361, no. 1 (April 28, 1998): 43–46. http://dx.doi.org/10.1007/s002160050831.

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Puk, Richard, and James H. Weber. "Determination of mercury(II), monomethylmercury cation, dimethylmercury and diethylmercury by hydride generation, cryogenic trapping and atomic absorption spectrometric detection." Analytica Chimica Acta 292, no. 1-2 (June 1994): 175–83. http://dx.doi.org/10.1016/0003-2670(94)00066-2.

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