Results 141 to 150 of about 2,072 (186)

Aneuploidy induction in Saccharomyces cerevisiae by two solvent compounds, 1‐methyl‐2‐pyrrolidinone and 2‐pyrrolidinone

Environmental and Molecular Mutagenesis, 1988
AbstractA number of solvent compounds that were tested in Saccharomyces cerevisiae were potent inducers of aneuploidy, although they did not induce any other genetic effects. As an extention of these earlier findings, 1‐methyl‐2‐pyrrolidinone was tested and was found to induce aneuploidy.
V W, Mayer, C J, Goin, R E, Taylor-Mayer
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A Study of the Reaction of OH Radicals with N-Methyl Pyrrolidinone,N-Methyl Succinimide and N-Formyl Pyrrolidinone

Journal of Atmospheric Chemistry, 2006
A study of the oxidation mechanism of N-methyl pyrrolidinone (C5H9NO, NMP) initiated by hydroxyl radicals was made at EUPHORE at atmospheric pressure (1000 ± 10) mbar of air and ambient temperature (T = 300 ± 5 K). The main products were N-methyl succinimide (NMS) (52 ± 4)% and N-formyl pyrrolidinone (FP) (23 ± 9)%. The relative rate technique was used
G. Solignac, I. Magneron, A. Mellouki, A. Muñoz, M. Martin Reviejo, K. Wirtz   +5 more
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The aldol condensation of aromatic aldehydes with n‐acetyl‐2‐pyrrolidinone: Synthesis of 3‐arylidene‐2‐pyrrolidinones

Journal of Heterocyclic Chemistry, 1965
AbstractThe synthesis of several 3‐arylidene‐2‐pyrrolidinones (V) by aldol condensation between aromatic aldehydes and N‐acetyl‐2‐pyrrolidinone is reported. The UV‐spectra of structures of type V compounds are discussed and compared with those of the corresponding α ‐arylidene‐γ‐butyrolactones.
Hans Zimmer, David C. Armbruster, L. J. Trauth   +2 more
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Densities, Viscosities, Speeds of Sound, and Relative Permittivities for Water + Cyclic Amides (2-Pyrrolidinone, 1-Methyl-2-pyrrolidinone, and 1-Vinyl-2-pyrrolidinone) at Different Temperatures

Journal of Chemical & Engineering Data, 2004
Experimental densities, ρ, viscosities, η, speeds of sound, υ, and relative permittivities, er, for three binary mixtures of water + 2-pyrrolidinone, + 1-methyl-2-pyrrolidinone, and + 1-vinyl-2-pyrrolidinone were measured over the entire composition range and at different temperatures.
John George, Nandhibatla V. Sastry
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Thermodynamic and spectroscopic properties of 2‐pyrrolidinones. 3. NMR spectroscopic studies on 2‐pyrrolidinone in different solvents

Journal of Physical Organic Chemistry, 1989
Abstract1H, 13C, 15N and 17O NMR chemical shifts, 1JNH and 1JCH coupling constants and line widths (Δν1/2) of the 14N and 17O resonance lines were determined for 2‐pyrrolidinone neat and for several 2‐pyrrolidinone–solvent systems. The 17O NMR chemical shift of 2‐pyrrolidinone was clearly most sensitive to the solvent effects, but changes with the ...
P. Ruostesuo, P. Pirilä‐Honkanen, L. Heikkinen   +2 more
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Intramolecular Radical Amidooxygenation of Alkenes for the Construction of Pyrrolidinones

Organic Letters
An intramolecular 1,2-amidooxygenation of unactivated alkenes for the construction of the pyrrolidinone scaffold containing a masked 5-hydroxymethyl functionality is reported. γ,δ-Unsaturated N-aryloxyamides react with sodium 2,2,6,6-tetramethylpiperidin-1-olate (TEMPONa) to afford alkoxyaminated pyrrolidinones.
Anirban Maity, Armido Studer
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Co(II) complexes with 2-pyrrolidinone

Canadian Journal of Chemistry, 1969
For the known complexes CoL3X2 (X = Cl, Br, and L = 2-pyrrolidinone) a more detailed infrared study was made. Together with the electronic spectra this study indicates dissociation of CoL2X3 into CoL2X2 + L in chloroform and acetone solution. The conductivity measurements and the molecular weight determinations also support dissociation.
O. Bohunovsky, S. C. Jain, R. Rivest
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Cobalt-Catalyzed Alkene Alkylarylation: Access to Pyrrolidinones

Organic Letters
Practical cyclization and cross-coupling reactions between alkenyl-substituted alkyl bromides and arylzinc pivalates via cobalt-catalyzed sequential C(sp3)-C(sp3)/C(sp3)-C(sp2) bond formation have been disclosed, thus providing straightforward access to structurally diverse pyrrolidinones. Moreover, this approach could be also effective for the modular
Junda Wang, Kaixin Chen, Changrui Nie, Chenhao Huang, Qian Zhang, Jie Li   +5 more
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ChemInform Abstract: Structural Analysis of Pyrrolidinones.

ChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Fabrice Camus, Bernadette Norberg, Anne Legrand, Benoit Rigo, Francois Durant, Johan Wouters   +5 more
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Depolymerization of methyl pyrrolidinone chitosan by lysozyme

Carbohydrate Polymers, 1992
Abstract Methyl pyrrolidinone chitosan is being tested as a wound dressing material endowed of biological significance. In order to clarify its fate and role when applied to a surgical wound, its hydrolytic depolymerization by hen egg white lysozyme was studied in vitro. Viscometric measurements at three temperatures (25, 37 and 50°C) and five methyl
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