Results 221 to 230 of about 26,979 (280)
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2001
[106-51-4] C6H4O2 (MW 108.10) InChI = 1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H InChIKey = AZQWKYJCGOJGHM-UHFFFAOYSA-N (useful as an oxidizing1 or dehydrogenation agent;2 can function as a dienophile3 in the Diels–Alder reaction or as a dipolarophile to prepare 5-hydroxyindole derivatives4) Alternate Name: p-benzoquinone.
Teng-Kuei Yang, Chi-Yung Shen
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[106-51-4] C6H4O2 (MW 108.10) InChI = 1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H InChIKey = AZQWKYJCGOJGHM-UHFFFAOYSA-N (useful as an oxidizing1 or dehydrogenation agent;2 can function as a dienophile3 in the Diels–Alder reaction or as a dipolarophile to prepare 5-hydroxyindole derivatives4) Alternate Name: p-benzoquinone.
Teng-Kuei Yang, Chi-Yung Shen
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A fluorinated masked o-benzoquinone
Journal of Fluorine Chemistry, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Timothy B. Patrick +3 more
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Benzoquinone imines. Part II. Hydrolysis of p-benzoquinone monoimine and p-benzoquinone di-imine
Journal of the Chemical Society B: Physical Organic, 1969Kinetic studies of the hydrolysis of p-benzoquinone monoimine, over the pH range 2–10, have shown that the reaction exhibits first-order kinetics over the whole pH range. The pH dependence indicates a rate-controlling step involving the reaction of both the free imine and its protonated form with water, the latter being 1·8 × 103 more reactive than the
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Journal of Computer-Aided Molecular Design, 1997
Restricted and unrestricted (U) Hartree–Fock (HF), second-order Moller–Plesset perturbation (MP2), density functional (DF), hybrid HF/DF and semiempirical (half-electron (HE) method) models have been used to calculate adiabatic electron affinities (EAad values) of p- benzoquinone (I), p-benzoquinone imine (VI) and p-benzoquinone diimine (XI), as well ...
Yitbarek H. Mariam, Lek Chantranupong
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Restricted and unrestricted (U) Hartree–Fock (HF), second-order Moller–Plesset perturbation (MP2), density functional (DF), hybrid HF/DF and semiempirical (half-electron (HE) method) models have been used to calculate adiabatic electron affinities (EAad values) of p- benzoquinone (I), p-benzoquinone imine (VI) and p-benzoquinone diimine (XI), as well ...
Yitbarek H. Mariam, Lek Chantranupong
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Methylation of substituted 1,4-benzoquinones
Collection of Czechoslovak Chemical Communications, 1987Methylation of 1,4-benzoquinones I and Ia with diazomethane afforded methyl 15-(6-methoxy-3-methyl-1,4-benzoquinon-2-yl)pentadecanoate (IIa) and methyl 15-(3-methoxy-2,5-dioxobicyclo[4.1.0]hept-3-en-1-yl)pentadecanoate (IIIa), methylation of 1,4-benzoquinone IVa led to methyl 15-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)pentadecanoate (Va) and ...
Jaroslav Kopecký +2 more
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Deslongchamps Annulations with Benzoquinone Monoketals
Organic Letters, 2011The so-called Deslongchamps annulation of deprotonated γ,δ-unsaturated β-ketoesters 15 to 2-(alkoxycarbonyl)cyclohex-2-en-1-ones or similarly activated cyclohex-2-en-1-ones offers a versatile access to various kinds of decalindiones. The scope of Deslongchamps annulations was extended by establishing acceptor-substituted benzoquinone monoketals such as
Petrović, Denis, Brückner, Reinhard
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Larvicidal activity of para-Benzoquinones
Parasitology Research, 2010Plant products may be alternative sources of mosquito larval control agents, since they constitute a rich source of bioactive compounds that are biodegradable into nontoxic products. It has been reported that quinones and derivatives present toxic activity against mosquito larvae Aedes aegypti.
Damião P, De Sousa +5 more
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Reaction of selenomethionine with o-benzoquinone
Analytical Biochemistry, 1981Abstract A new reaction of selenomethionine with o-benzoquinone is described. This reaction can be used to distinguish between methionine and selenomethionine.
M N, Gupta, R, Gopinath, K, Raju
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Stereoregular Poly(benzoquinone imines) from Methyl-Substituted Benzoquinones
Macromolecules, 1997Stereoregular poly(benzoquinone imine)s have been synthesized by polycondensation of dimethylbenzoquinone with 4,4'thiodianiline and 4,4'methylendianiline.
Harold W. Boone +4 more
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The complexing of histamine with p-benzoquinone
Biochimica et Biophysica Acta (BBA) - General Subjects, 1972Histamine interacts with p-benzoquinone to form an unstable complex which breaks down to give hydroquinone. Rate constants and thermodynamic data have been obtained for the interaction from spectrophotometric measurements using digital simulation techniques.
G H, Moxon, M A, Slifkin
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