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Showing 13 to 24 of 2679 entries
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RIFM fragrance ingredient safety assessment, 1-methyl-3-methoxy-4-isopropylbenzene, CAS Registry Number 1076-56-8.

Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association

Api AM, Belsito D, Botelho D, Browne D, Bruze M, Burton GA, Buschmann J, Dagli ML, Date M, Dekant W, Deodhar C, Francis M, Fryer AD, Joshi K, La Cava S, Lapczynski A, Liebler DC, O'Brien D, Parakhia R, Patel A, Penning TM, Ritacco G, Romine J, Salvito D, Schultz TW, Sipes IG, Thakkar Y, Theophilus EH, Tiethof AK, Tokura Y, Tsang S, Wahler J.
PMID: 28864296
Food Chem Toxicol. 2017 Dec;110:S462-S470. doi: 10.1016/j.fct.2017.08.042. Epub 2017 Aug 31.

No abstract available.

Poly(phenylene) and m-Terphenyl as Powerful Protecting Groups for the Preparation of Stable Organic Hydroxides.

Angewandte Chemie (International ed. in English)

Wright AG, Weissbach T, Holdcroft S.
PMID: 26948285
Angew Chem Int Ed Engl. 2016 Apr 04;55(15):4818-21. doi: 10.1002/anie.201511184. Epub 2016 Mar 07.

Four benzimidazolium hydroxide compounds, in which the C2-position is attached to a phenyl group possessing hydrogen, bromine, methyl groups, or phenyl groups at the ortho positions, are prepared and investigated for stability in a quantitative alkaline stability test. The...

Anomalous halogen bonds in the crystal structures of 1,2,3-tri-bromo-5-nitro-benzene and 1,3-di-bromo-2-iodo-5-nitro-benzene.

Acta crystallographica. Section E, Crystallographic communications

Romero JA, Aguirre Hernández G, Bernès S.
PMID: 26396766
Acta Crystallogr E Crystallogr Commun. 2015 Jul 22;71:960-4. doi: 10.1107/S2056989015013377. eCollection 2015 Aug 01.

The title trihalogenated nitro-benzene derivatives, C6H2Br3NO2 and C6H2Br2INO2, crystallize in triclinic and monoclinic cells, respectively, with two mol-ecules per asymmetric unit in each case. The asymmetric unit of the tri-bromo compound features a polarized Br(δ+)⋯Br(δ-) inter-molecular halogen bond. After...

Synthesis of Brominated Thiazoles via Sequential Bromination-Debromination Methods.

The Journal of organic chemistry

Uzelac EJ, Rasmussen SC.
PMID: 28508637
J Org Chem. 2017 Jun 02;82(11):5947-5951. doi: 10.1021/acs.joc.7b00495. Epub 2017 May 16.

The synthesis of the full family of bromothiazoles has been revisited in order to update and optimize their production. The species reported include 2-bromothiazole, 4-bromothiazole, 5-bromothiazole, 2,4-dibromothiazole, 2,5-dibromothiazole, 4,5-dibromothiazole, and 2,4,5-tribromothiazole, the majority of which are produced via sequential...

Ullmann-like reactions for the synthesis of complex two-dimensional materials.

Nanotechnology

Quardokus RC, Tewary VK, DelRio FW.
PMID: 27677970
Nanotechnology. 2016 Nov 04;27(44):442501. doi: 10.1088/0957-4484/27/44/442501. Epub 2016 Sep 28.

Engineering two-dimensional materials through surface-confined synthetic techniques is a promising avenue for designing new materials with tailored properties. Developing and understanding reaction mechanisms for surface-confined synthesis of two-dimensional materials requires atomic-level characterization and chemical analysis. Beggan et al (2015...

Mono-, di- and tetrarhenium Fischer carbene complexes with thienothiophene substituents.

Dalton transactions (Cambridge, England : 2003)

Lamprecht Z, Radhakrishnan SG, Hildebrandt A, Lang H, Liles DC, Weststrate NA, Lotz S, Bezuidenhout DI.
PMID: 28975955
Dalton Trans. 2017 Oct 17;46(40):13983-13993. doi: 10.1039/c7dt02969a.

The oxidative cleaving of a rhenium-rhenium bond by bromine in binuclear Fischer carbene complexes proves to be an effective method to prepare mononuclear bromido-carbene complexes. The reaction of mono- and dilithiated thieno[2,3-b]thiophene (2,3-b-TTH

N-heterocyclic carbene induced reductive coupling of phosphorus tribromide. Isolation of a bromine bridged P-P bond and its subsequent reactivity.

Chemical science

Waters JB, Everitt TA, Myers WK, Goicoechea JM.
PMID: 28451133
Chem Sci. 2016 Dec 01;7(12):6981-6987. doi: 10.1039/c6sc02343f. Epub 2016 Jul 20.

The room temperature reaction of a 1 : 1 mixture of phosphorus tribromide (PBr

Chemomechanical-force-induced folding-unfolding directly controls distinct fluorescence dual-color switching.

Chemical communications (Cambridge, England)

Chen J, Ziegler AW, Zhao B, Wan W, Li ADQ.
PMID: 28425540
Chem Commun (Camb). 2017 May 02;53(36):4993-4996. doi: 10.1039/c7cc01643c.

Folding-unfolding imparts fluorescence dual color switching, thus a novel concept to switch fluorescence between two distinct colors while avoiding traditional bond rupturing and bond forming in photoswitching. Because folding and unfolding minimize the wear and tear on molecular structures,...

Mutation in fiber of adenovirus serotype 5 gene therapy vector decreases liver tropism.

International journal of clinical and experimental medicine

Wang Z, Wang B, Lou J, Yan J, Gao L, Geng R, Yu B.
PMID: 25663991
Int J Clin Exp Med. 2014 Dec 15;7(12):4942-50. eCollection 2014.

Recombinant adenovirus (Ad) vectors are widely used for both in vitro and in vivo gene transfer. However, intravenous administration of Ad vectors results mainly in hepatocyte transduction and subsequent hepatotoxicity. Coxsackie-adenovirus receptor (CAR) and αvβ integrins, which are functional...

Theoretical Investigation on the Substituent Effect of Halogen Atoms at the C8 Position of Adenine: Relative Stability, Vibrational Frequencies, and Raman Spectra of Tautomers.

The journal of physical chemistry. A

Chen YL, Wu DY, Tian ZQ.
PMID: 27243104
J Phys Chem A. 2016 Jun 16;120(23):4049-58. doi: 10.1021/acs.jpca.6b03604. Epub 2016 Jun 07.

We have theoretically investigated the substituent effect of adenine at the C8 position with a substituent X = H, F, Cl, and Br by using the density functional theory (DFT) at the B3LYP/6-311+G(d, p) level. The aim is to...

Analytic ab initio-based molecular interaction potential for the BrO⋅H2O complex.

The Journal of chemical physics

Hoehn RD, Yeole SD, Kais S, Francisco JS.
PMID: 27250293
J Chem Phys. 2016 May 28;144(20):204121. doi: 10.1063/1.4950956.

Radical halogen oxide species play important roles within atmospheric processes, specifically those responsible for the removal of O3. To facilitate future investigations on this family of compounds, RCCSD(T)/aug-cc-pVQZ-level electronic structure calculations were employed to generate individual-molecule optimized geometries, as...

Catalytic Asymmetric Bromination of Unfunctionalized Olefins with H2O as a Nucleophile.

Chemistry (Weinheim an der Bergstrasse, Germany)

Zhang X, Li J, Tian H, Shi Y.
PMID: 26137926
Chemistry. 2015 Aug 10;21(33):11658-63. doi: 10.1002/chem.201502133. Epub 2015 Jul 02.

The dimeric cinchona alkaloid (DHQD)2 PHAL is used to catalyze an effective asymmetric bromohydroxylation of unfunctionalized olefins with H2 O as nucleophile an N-bromobenzamide as a bromine source. A variety of optically active bromohydrins are formed with up to...

Showing 13 to 24 of 2679 entries