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Showing 1 to 12 of 22 entries
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Colorimetric and visual determination of acrylamide via acrylamide-mediated polymerization of acrylamide-functionalized gold nanoparticles.

Mikrochimica acta

Shi X, Lu D, Wang Z, Zhang D, Gao W, Zhang C, Deng J, Guo S.
PMID: 30368605
Mikrochim Acta. 2018 Oct 27;185(11):522. doi: 10.1007/s00604-018-3062-5.

A colorimetric assay is described for acrylamide (AA). It is based on color changes induced by an increase in the distance between gold nanoparticles (AuNPs) that is caused by AA copolymerization. First, AuNPs were modified with a thiolated propylene...

N-vinyl compounds: studies on metabolism, genotoxicity, carcinogenicity.

Archives of toxicology

Oesch F, Honarvar N, Fabian E, Berger FI, Landsiedel R.
PMID: 34091723
Arch Toxicol. 2021 Oct;95(10):3143-3159. doi: 10.1007/s00204-021-03081-5. Epub 2021 Jun 06.

Several N-vinyl compounds are produced in high volumes and are widely employed in the production of copolymers and polymers used in chemical, pharmaceutical, cosmetic and food industry. Hence, information on their genotoxicity and carcinogenicity is requisite. This review presents...

Biobased Poly(itaconic Acid-.

Materials (Basel, Switzerland)

Aso Y, Sano M, Yada R, Tanaka T, Aoki T, Ohara H, Kusukawa T, Matsumoto K, Wada K.
PMID: 32545881
Materials (Basel). 2020 Jun 14;13(12). doi: 10.3390/ma13122707.

Renewable vinyl compounds itaconic acid (IA) and its derivative 10-hydroxyhexylitaconic acid (10-HHIA) are naturally produced by fungi from biomass. This provides the opportunity to develop new biobased polyvinyls from IA and 10-HHIA monomers. In this study, we copolymerized these...

Robust photocatalytic water reduction with cyclometalated Ir(III) 4-vinyl-2,2'-bipyridine complexes.

Chemical communications (Cambridge, England)

Metz S, Bernhard S.
PMID: 20852761
Chem Commun (Camb). 2010 Oct 28;46(40):7551-3. doi: 10.1039/c0cc01827a. Epub 2010 Sep 17.

Novel [Ir(C^N)(2)(N^N)](+) complexes with N^N ligands containing vinyl groups were synthesized resulting in quintupled turn-over numbers for the photocatalytic hydrogen production compared to the analogous non-vinyl compounds.

Polymerizable Matrix Metalloproteinases' Inhibitors with Potential Application for Dental Restorations.

Biomedicines

Laronha H, Carpinteiro I, Portugal J, Azul A, Polido M, Petrova KT, Salema-Oom M, Barahona I, Caldeira J.
PMID: 33807479
Biomedicines. 2021 Mar 31;9(4). doi: 10.3390/biomedicines9040366.

Collagen cleavage by matrix metalloproteinase (MMP) is considered a major cause of dental resins long term failure. Most MMP inhibitors display significant toxicity and are unsuitable for dental resins' applications. Here we report a study of a new class...

Microbial Screening Based on the Mizoroki-Heck Reaction Permits Exploration of Hydroxyhexylitaconic-Acid-Producing Fungi in Soils.

Microorganisms

Sano M, Yada R, Nomura Y, Kusukawa T, Ando H, Matsumoto K, Wada K, Tanaka T, Ohara H, Aso Y.
PMID: 32365722
Microorganisms. 2020 Apr 29;8(5). doi: 10.3390/microorganisms8050648.

Recently, we developed a unique microbial screening method based on the Mizoroki-Heck reaction for itaconic acid (IA)-producing fungi. This method revealed that 37 out of 240 fungal strains isolated from soils produce vinyl compounds, including IA. In this study,...

Functionalized tellurols: synthesis, spectroscopic characterization by photoelectron spectroscopy, and quantum chemical study.

Inorganic chemistry

Khater B, Guillemin JC, Bajor G, Veszprémi T.
PMID: 18257551
Inorg Chem. 2008 Mar 03;47(5):1502-11. doi: 10.1021/ic701791h. Epub 2008 Feb 08.

Ethene-, cyclopropane-, 3-butene-, and cyclopropanemethanetellurol have been synthesized by reaction of tributyltin hydride with the corresponding ditellurides and characterized by 1H, 13C, and 125Te NMR spectroscopy and high-resolution mass spectrometry. The tellurols of this series, with a gradually increasing...

Palladium-Catalyzed Decarbonylative Dehydration for the Synthesis of α-Vinyl Carbonyl Compounds and Total Synthesis of (-)-Aspewentins A, B, and C.

Angewandte Chemie (International ed. in English)

Liu Y, Virgil SC, Grubbs RH, Stoltz BM.
PMID: 26230413
Angew Chem Int Ed Engl. 2015 Sep 28;54(40):11800-3. doi: 10.1002/anie.201505161. Epub 2015 Jul 29.

The direct α-vinylation of carbonyl compounds to form a quaternary stereocenter is a challenging transformation. It was discovered that δ-oxocarboxylic acids can serve as masked vinyl compounds and be unveiled by palladium-catalyzed decarbonylative dehydration. The carboxylic acids are readily...

Ozonolysis of vinyl compounds, CH2=CH-X, in aqueous solution--the chemistries of the ensuing formyl compounds and hydroperoxides.

Organic & biomolecular chemistry

Leitzke A, Flyunt R, Theruvathu JA, von Sonntag C.
PMID: 12929641
Org Biomol Chem. 2003 Mar 21;1(6):1012-9. doi: 10.1039/b212194h.

Reactions of ozone with some vinyl compounds of the general structure CH2=CH-X were studied in aqueous solution. Rate constants (in brackets, unit: dm3 mol-1 s-1) were determined: acrylonitrile (670), vinyl acetate (1.6 x 10(5)), vinylsulfonic acid (anion, 8.3 x...

Quantum theory of atoms in molecules analysis on the conformational preferences of vinyl alcohol and related ethers.

The journal of physical chemistry. A

Vila A, Mosquera RA.
PMID: 16834058
J Phys Chem A. 2005 Aug 11;109(31):6985-9. doi: 10.1021/jp052673f.

Vinyl alcohol, methyl vinyl ether, and tert-butyl vinyl ether were studied within the framework of the quantum theory of atoms in molecules at the B3LYP/6-311++G(2d,2p) level. Local and integrated properties of the charge density indicate that the anti conformational...

Acidity trends in alpha,beta-unsaturated sulfur, selenium, and tellurium derivatives: comparison with C-, Si-, Ge-, Sn-, N-, P-, As-, and Sb-containing analogues.

Chemistry (Weinheim an der Bergstrasse, Germany)

Guillemin JC, Riague el H, Gal JF, Maria PC, Mó O, Yáñez M.
PMID: 15714535
Chemistry. 2005 Mar 18;11(7):2145-53. doi: 10.1002/chem.200400989.

The gas-phase acidity of CH3-CH2XH (X=S, Se, Te), CH2=CHXH (X=S, Se, Te) and PhXH (X=S, Se) compounds was measured by means of Fourier transform ion cyclotron resonance mass spectrometry. To analyze the role that unsaturation plays on the intrinsic...

Thermally induced twin polymerization of 4H-1,3,2-benzodioxasilines.

Chemistry (Weinheim an der Bergstrasse, Germany)

Kempe P, Löschner T, Auer AA, Seifert A, Cox G, Spange S.
PMID: 24849004
Chemistry. 2014 Jun 23;20(26):8040-53. doi: 10.1002/chem.201400038. Epub 2014 May 21.

The twin monomer 2,2'-spirobi[4H-1,3,2-benzodioxasiline] (1) can be polymerized to nanostructured SiO2/phenolic-resin composite material by thermally induced twin polymerization. Thermally induced twin polymerization represents a way to produce nanocomposites simply by thermal induction of twin monomers. Besides 1, the thermal...

Showing 1 to 12 of 22 entries