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Erwin Buncel

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Ik-Hwan Um; Ji-Sun Kang; Young-Hee Shin; Erwin Buncel
A kinetic study on nucleophilic displacement reactions of aryl benzenesulfonates with potassium ethoxide: role of K+ ion and reaction mechanism deduced from analyses of LFERs and activation parameters.
Jamie Whelan; James T C Wojtyk; Dalia Abdallah; Julian M Dust; Shmaryahu Hoz; Jean-Michel Nunzi; Konrad Piskorz; Erwin Buncel
Photochemical and thermal spiropyran (SP)-merocyanine (MC) interconversion: a dichotomy in dependence on viscosity.
Ik-Hwan Um; Li-Ra Im; Erwin Buncel
Pitfalls in assessing the α-effect: reactions of substituted phenyl methanesulfonates with HOO(-), OH(-), and substituted phenoxides in H(2)O.

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2013: Ik-Hwan Um; Ji-Sun Kang; Young-Hee Shin; Erwin Buncel
A kinetic study on nucleophilic displacement reactions of aryl benzenesulfonates with potassium ethoxide: role of K+ ion and reaction mechanism deduced from analyses of LFERs and activation parameters.
The Journal of organic chemistry 2013;78(2):490-7.
2012: Jamie Whelan; James T C Wojtyk; Dalia Abdallah; Julian M Dust; Shmaryahu Hoz; Jean-Michel Nunzi; Konrad Piskorz; Erwin Buncel
Photochemical and thermal spiropyran (SP)-merocyanine (MC) interconversion: a dichotomy in dependence on viscosity.
Physical chemistry chemical physics : PCCP 2012;14(39):13684-91.
2010: Ik-Hwan Um; Li-Ra Im; Erwin Buncel
Pitfalls in assessing the α-effect: reactions of substituted phenyl methanesulfonates with HOO(-), OH(-), and substituted phenoxides in H(2)O.
The Journal of organic chemistry 2010;75(24):8571-7.
2010: Zhiyuan Tian; Robert A Stairs; Martin Wyer; Nicholas Mosey; Julian M Dust; Thomas M Kraft; Erwin Buncel
Spirooxazine to merooxazine interconversion in the presence and absence of zinc: approach to a bistable photochemical switch.
The journal of physical chemistry. A 2010;114(44):11900-9.
2010: Erwin Buncel; François Terrier
Assessing the superelectrophilic dimension through sigma-complexation, SNAr and Diels-Alder reactivity.
Organic & biomolecular chemistry 2010;8(10):2285-308.
2009: Dalia Abdallah; Jamie Whelan; Julian M Dust; Shmaryahu Hoz; Erwin Buncel
Energy transfer in the azobenzene-naphthalene light harvesting system.
The journal of physical chemistry. A 2009;113(24):6640-7.
2009: Ik-Hwan Um; Jeong-Yoon Han; Erwin Buncel
Effects on the reactivity by changing the electrophilic center from C==O to C==S: contrasting reactivity of hydroxide, p-chlorophenoxide, and butan-2,3-dione monoximate in DMSO/H2O mixtures.
Chemistry (Weinheim an der Bergstrasse, Germany) 2009;15(4):1011-7.
2008: Sam-Rok Keum; Se-Jung Roh; Min-Hyung Lee; Francoise Sauriol; Erwin Buncel
1H and 13C NMR assignments for new heterocyclic TAM leuco dyes, (2Z,2'E)-2,2'-(2-phenyl propane-1,3-diylidene) bis(1,3,3-trimethylindoline) derivatives. Part II.
Magnetic resonance in chemistry : MRC 2008;46(9):872-7.
2008: Omoshile Clement; Lewyn Li; Julian M Dust; Erwin Buncel
High sensitivity to transmission of attenuation in the metal activating effect of platinum on sequential H-D exchange at the four C8 sites of inosines in tetrakis(inosine)platinum(II) chloride.
Organic & biomolecular chemistry 2008;6(16):2924-33.
2008: Ik-Hwan Um; Young-Hee Shin; Seung-Eun Lee; Kiyull Yang; Erwin Buncel
Alkali metal ion catalysis and inhibition in nucleophilic displacement reactions at phosphorus centers: ethyl and methyl paraoxon and ethyl and methyl parathion.
The Journal of organic chemistry 2008;73(3):923-30.
2007: Sami Lakhdar; Régis Goumont; François Terrier; Taoufik Boubaker; Julian M Dust; Erwin Buncel
Mayr electrophilicity predicts the dual Diels-Alder and sigma-adduct formation behaviour of heteroaromatic super-electrophiles.
Organic & biomolecular chemistry 2007;5(11):1744-51.
2007: Xiumei Han; Vimal K Balakrishnan; Erwin Buncel
Alkaline degradation of the organophosphorus pesticide fenitrothion as mediated by cationic C12, C14, C16, and C18 surfactants.
Langmuir : the ACS journal of surfaces and colloids 2007;23(12):6519-25.
2007: James T C Wojtyk; Adnaan Wasey; Ning-Ning Xiao; Peter M Kazmaier; Shmaryahu Hoz; Chen Yu; Robert P Lemieux; Erwin Buncel
Elucidating the mechanisms of acidochromic spiropyran-merocyanine interconversion.
The journal of physical chemistry. A 2007;111(13):2511-6.
2006: Xiumei Han; Vimal K Balakrishnan; Gary W vanLoon; Erwin Buncel
Degradation of the pesticide fenitrothion as mediated by cationic surfactants and alpha-nucleophilic reagents.
Langmuir : the ACS journal of surfaces and colloids 2006;22(21):9009-17.
2006: Ik-Hwan Um; So-Jeong Hwang; Erwin Buncel
Solvent effect on the alpha-effect: ground-state versus transition-state effects; a combined calorimetric and kinetic investigation.
The Journal of organic chemistry 2006;71(3):915-20.
2005: Vimal K Balakrishnan; Erwin Buncel; Gary W vanLoon
Micellar catalyzed degradation of fenitrothion, an organophosphorus pesticide, in solution and soils.
Environmental science & technology 2005;39(15):5824-30.
2005: Ikenna Onyido; Kendall Albright; Erwin Buncel
Catalysis of the ethanolysis of aryl methyl phenyl phosphinate esters by alkali metal ions: transition state structures for uncatalyzed and metal ion-catalyzed reactions.
Organic & biomolecular chemistry 2005;3(8):1468-75.
2005: François Terrier; Emmanuel Magnier; Elyane Kizilian; Claude Wakselman; Erwin Buncel
Superacidifiers: assessing the activation and the mode of charge transmission of the extraordinary electron-withdrawing SO2CF3 and S(O)(=NSO2CF3)CF3 substituents in carbanion stabilization.
Journal of the American Chemical Society 2005;127(15):5563-71.
2004: Ikenna Onyido; Albert R Norris; Erwin Buncel
Biomolecule--mercury interactions: modalities of DNA base--mercury binding mechanisms. Remediation strategies.
Chemical reviews 2004;104(12):5911-29.
2004: François Terrier; Sami Lakhdar; Régis Goumont; Taoufik Boubaker; Erwin Buncel
Electrophilicity parameters for sigma-complexation by uncharged electron-deficient aromatic and heteroaromatic structures.
Chemical communications (Cambridge, England) 2004;(22):2586-7.
2004: Vimal K Balakrishnan; Xiumei Han; Gary W vanLoon; Julian M Dust; Jean Toullec; Erwin Buncel
Acceleration of nucleophilic attack on an organophosphorothioate neurotoxin, fenitrothion, by reactive counterion cationic micelles. Regioselectivity as a probe of substrate orientation within the micelle.
Langmuir : the ACS journal of surfaces and colloids 2004;20(16):6586-93.
2004: Erwin Buncel; Kendall G Albright; Ikenna Onyido
Nucleophilic displacement on 4-nitrophenyl dimethyl phosphinate by ethoxide ion: alkali metal ion catalysis and mechanism.
Organic & biomolecular chemistry 2004;2(4):601-10.
2003: François Terrier; Malika Mokhtari; Régis Goumont; Jean-Claude Hallé; Erwin Buncel
High Brønsted beta nuc values in SNAr displacement. An indicator of the SET pathway?
Organic & biomolecular chemistry 2003;1(10):1757-63.
2003: Régis Goumont; Elyane Kizilian; Erwin Buncel; François Terrier
Super acidifiers: the origin of the exceptional electron transmission capability of the SO2CF3 group in carbanion stabilization.
Organic & biomolecular chemistry 2003;1(10):1741-8.
2003: Erwin Buncel; Kuk-Tae Park; Julian M Dust; Richard A Manderville
Concerning the denticity of the dimethylsulfinyl anion in Meisenheimer complexation.
Journal of the American Chemical Society 2003;125(18):5388-92.
2003: François Terrier; E Le Guével; A P Chatrousse; Gilles Moutiers; Erwin Buncel
The levelling effect of solvational imbalances in the reactions of oximate alpha-nucleophiles with electrophilic phosphorus centers. Relevance to detoxification of organophosphorus esters.
Chemical communications (Cambridge, England) 2003;(5):600-1.
2003: Ruby Nagelkerke; Gregory R J Thatcher; Erwin Buncel
Alkali-metal ion catalysis and inhibition in nucleophilic displacement reactions at carbon, phosphorus and sulfur centres. IX. p-Nitrophenyl diphenyl phosphate.
Organic & biomolecular chemistry 2003;1(1):163-7.
2002: Ik-Hwan Um; Hyun-Joo Han; Jung-Ae Ahn; Swan Kang; Erwin Buncel
Reinterpretation of curved Hammett plots in reaction of nucleophiles with aryl benzoates: change in rate-determining step or mechanism versus ground-state stabilization.
The Journal of organic chemistry 2002;67(24):8475-80.
2002: Ishaq S Eneji; Erwin Buncel; Gary W vanLoon
Degradation and sorption of pirimiphos-methyl in two Nigerian soils.
Journal of agricultural and food chemistry 2002;50(20):5634-9.
2002: Erwin Buncel; Céline Cannes; Alain-Pierre Chatrousse; François Terrier
Reactions of oximate alpha-nucleophiles with esters: evidence from solvation effects for substantial decoupling of desolvation and bond formation.
Journal of the American Chemical Society 2002;124(30):8766-7.
2001: Ik-Hwan Um; Erwin Buncel
Ground-state versus transition-state effects on the alpha-effect as expressed by solvent effects.
Journal of the American Chemical Society 2001;123(44):11111-2.
2001: Ik-Hwan Um; E J Lee; Erwin Buncel
Solvent effect on the alpha-effect for the reactions of aryl acetates with butane-2,3-dione monoximate and p-chlorophenoxide in MeCN-H2O mixtures.
The Journal of organic chemistry 2001;66(14):4859-64.
2000: Erwin Buncel; O Clement; Ikenna Onyido
Metal ion effects in isotopic hydrogen exchange in biologically important heterocycles.
Accounts of chemical research 2000;33(10):672-8.
1984: Erwin Buncel; H S Shin; R A Bannard; J G Purdon; B G Cox
Extraction of potassium p-nitrophenoxide with macrocyclic crown ethers and cryptands from aqueous medium into diverse organic solvents: a systematic evaluation.
Talanta 1984;31(8):585-92.