Results 151 to 160 of about 2,994 (192)
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Structural analysis of pyrrolidinones
Acta Crystallographica Section C Crystal Structure Communications, 2000In the course of a study on pyrrolidinones, the crystal structures of four compounds, namely, methyl N-[(4-methoxyphenyl)(3,4,5-trimethoxyphenyl)methyl]pyroglutamate, C23H27NO7, methyl N-[naphthyl-(3,4,5-trimethoxyphenyl)methyl]pyroglutamate diacetyl peroxide, C26H27NO6·-0.5C4H6O4, 5-(3,4,5-trimethoxyphenyl)-1,2,3,11b-tetrahydro-
Camus, Fabrice +5 more
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Studies on pyrrolidinones. A convenient synthesis of 5‐cyano‐2‐pyrrolidinone derivatives
Journal of Heterocyclic Chemistry, 1986AbstractThe reaction of 2‐pyrrolidinone‐5‐carboxamide (pyroglutamide) with trimethylchlorosilane and zinc chloride as a catalyst afford in one step a 91% yield of N‐trimethylsilylpyroglutamic acid nitrile whose acylation gives N‐acyl compounds 2b,c.
Benoǐt Rigo +2 more
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Unexpected reaction of β-cyclodextrin tosylate with pyrrolidinones
Carbohydrate Research, 2006Substitution reactions of 6I-O-p-tolylsulfonylcyclomaltoheptaose with alkyl- and arylamines in 1-methyl-2-pyrrolidinone and various pyrrolidinones were investigated. An unexpected reaction of the tosyl group with pyrrolidinones was observed resulting in products deriving from nucleophilic attack by the lactam carbonyl oxygen and further opening of the ...
CUZZOLA A. +5 more
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Easy approach to 3-benzylimino-2-pyrrolidinones from 3-chloro-4-chloromethyl-2-pyrrolidinones
Tetrahedron Letters, 1999Abstract 3-Benzylimino-2-pyrrolidinones can be prepared in good yield by heating 3-chloro-4-chloromethyl-2-pyrrolidinones, benzylamine and NaI in THF at 80°C. An endo -dehydrohalogenation followed by a SN 2 ′ substitution on the intermediate allyl chloride, and finally a shift of the exo -double bond to Δ 3 with attendant tautomerization ...
GHELFI, Franco +4 more
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Chemischer Informationsdienst, 1986
AbstractPyroglutamid (I) wird zu (II) silyliert und dann mit Zinkchlorid über (III) zum 5‐Cyan‐2‐pyrrolidinon (IVa) desilyliert.
B. RIGO, C. LESPAGNOL, M. PAULY
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AbstractPyroglutamid (I) wird zu (II) silyliert und dann mit Zinkchlorid über (III) zum 5‐Cyan‐2‐pyrrolidinon (IVa) desilyliert.
B. RIGO, C. LESPAGNOL, M. PAULY
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2009
[872-50-4] C5H9NO (MW 99.15) InChI = 1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3 InChIKey = SECXISVLQFMRJM-UHFFFAOYSA-N (special solvent;1 source of enolates2) Alternate Names: NMP; N-methylpyrrolidone. Physical Data: mp −24.4 °C; bp 202 °C; d 1.030 g cm−3.
Peteris Trapencieris, Julie A. Pigza
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[872-50-4] C5H9NO (MW 99.15) InChI = 1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3 InChIKey = SECXISVLQFMRJM-UHFFFAOYSA-N (special solvent;1 source of enolates2) Alternate Names: NMP; N-methylpyrrolidone. Physical Data: mp −24.4 °C; bp 202 °C; d 1.030 g cm−3.
Peteris Trapencieris, Julie A. Pigza
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Food and Chemical Toxicology, 1992
The percutaneous absorption has been investigated in rats of a mixture (3:2, w/w) of N-methyl-2-pyrrolidinone (NMP) and 2-pyrrolidinone (2-P), a combination intended for use as a vehicle in the formulation of an antimycotic drug to enhance skin penetration on dermal application, following co-administration of the two 14C-radiolabelled compounds by the ...
I, Midgley +5 more
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The percutaneous absorption has been investigated in rats of a mixture (3:2, w/w) of N-methyl-2-pyrrolidinone (NMP) and 2-pyrrolidinone (2-P), a combination intended for use as a vehicle in the formulation of an antimycotic drug to enhance skin penetration on dermal application, following co-administration of the two 14C-radiolabelled compounds by the ...
I, Midgley +5 more
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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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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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Studies on Pyrrolidinones: Chemistry of Dimethoxytriazines
Synthesis, 2013The synthesis of dimethoxytriazine-containing N-aryl substituted pyrrolidinones is realized for the first time. Three new modes of reactivity for these substrates possessing a 4,6-dimethoxy-1,3,5-triazine unit are discussed. Their treatment with acid leads to complete O-demethylation of the methoxy groups, while similar reaction in a basic medium leads
Alina Ghinet +6 more
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ChemInform Abstract: Structural Analysis of Pyrrolidinones.
ChemInform, 2000AbstractChemInform 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 +5 more
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