Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 1 to 12 of 4690 entries
Sorted by: Best Match Show Resources per page
Effects of experimentally-induced diabetes on sperm parameters and chromatin quality in mice.

Iranian journal of reproductive medicine

Mangoli E, Talebi AR, Anvari M, Pourentezari M.
PMID: 24639693
Iran J Reprod Med. 2013 Jan;11(1):53-60.

BACKGROUND: Diabetes mellitus (DM), primary or idiopathic is a chronic disorder of the carbohydrate, lipid and protein metabolism. DM may impact male reproductive function at several levels. It is shown that DM has detrimental effects on sperm parameters in...

Microwave assisted N-alkylation of amine functionalized crystal-like mesoporous phenylene-silica.

Dalton transactions (Cambridge, England : 2003)

Lourenço MA, Siegel R, Mafra L, Ferreira P.
PMID: 23508286
Dalton Trans. 2013 Apr 28;42(16):5631-4. doi: 10.1039/c3dt32011a.

N-alkylation reaction of amine functionalized phenylene moieties in crystal-like mesoporous silica is successfully achieved with about 87% of conversion in two reaction cycles. A potassium iodide catalyzed method commonly used for the selective N-monoalkylation of aniline is adapted and...

Nucleopalladation triggering the oxidative Heck reaction: a general strategy to diverse β-indole ketones.

Organic letters

Wang Q, Huang L, Wu X, Jiang H.
PMID: 24237319
Org Lett. 2013 Dec 06;15(23):5940-3. doi: 10.1021/ol4027683. Epub 2013 Nov 15.

A simple and efficient palladium-catalyzed oxidative coupling between 2-alkynyl anilines and allylic alcohols is described by using cheap and green dioxygen as the oxidant. These cross-couplings have a large functional group tolerance and are of higher reactivity toward electron...

Novel stilbene-triazine symmetrical optical brighteners: synthesis and applications.

Journal of fluorescence

Saeed A, Shabir G, Batool I.
PMID: 24859631
J Fluoresc. 2014 Jul;24(4):1119-27. doi: 10.1007/s10895-014-1392-1. Epub 2014 May 25.

A series of new high light fastness, hot pressing fastness optical brighteners was efficiently synthesized by a three-step approach involving the successive replacement of the three chloro groups of 2,4,6-trichloro-1,3,5-triazine under different conditions of temperature and pH. Thus, 2,4,6-trichloro-1,3,5-triazine...

Reaction from isomeric parent ions in the dissociation of dimethylpyrroles.

Journal of the American Society for Mass Spectrometry

Lin T, Asam MR, Glish GL.
PMID: 24203607
J Am Soc Mass Spectrom. 1996 Sep;7(9):930-7. doi: 10.1016/1044-0305(96)00021-9.

The major dissociation pathways of the [M-H](+) (loss of NH3 or CH4) and the [M+H](+) (loss of NH3 or CH3) ions from dimethylpyrroles have been determined to occur from isomeric parent ions. For the [M-H](+) ion (formed by loss...

Palladium-catalyzed aminocarbonylation of aryl iodides with amides and N-alkyl anilines.

Chemistry, an Asian journal

Ran L, Ren ZH, Wang YY, Guan ZH.
PMID: 25202768
Chem Asian J. 2014 Feb;9(2):577-83. doi: 10.1002/asia.201301245.

A novel and efficient palladium-catalyzed aminocarbonylation of aryl iodides with amides and N-alkyl anilines has been developed. The reaction tolerates a wide range of functional groups and is a reliable method for the rapid synthesis of a variety of...

Volume increment effect on the photoisomerization of hemicyanine dyes in oligo(ethylene glycol)s.

The journal of physical chemistry. A

Lee Y, Lee M.
PMID: 24266422
J Phys Chem A. 2013 Dec 05;117(48):12878-83. doi: 10.1021/jp4101043. Epub 2013 Nov 25.

We studied the excited-state dynamics of three hemicyanine dyes that undergo internal twisting from the localized excited state to the twisted intramolecular charge-transfer state. The dyes differ in the length of the alkyl chain in the aniline moiety and,...

N-Arylazetidines: Preparation through Anionic Ring Closure.

The Journal of organic chemistry

Quinodoz P, Drouillat B, Wright K, Marrot J, Couty F.
PMID: 26932242
J Org Chem. 2016 Apr 01;81(7):2899-910. doi: 10.1021/acs.joc.6b00169. Epub 2016 Mar 10.

We report herein an efficient synthesis of diversely substituted N-aryl-2-cyanoazetidines based on an anionic ring-closure reaction. These compounds can be prepared from β-amino alcohols in enantiomerically pure form through a three-step sequence involving (i) copper-catalyzed N-arylation, (ii) N-cyanomethylation of...

Synthesis of Quinolines via a Metal-Catalyzed Dehydrogenative N-Heterocyclization.

Chemical record (New York, N.Y.)

Chelucci G, Porcheddu A.
PMID: 27524555
Chem Rec. 2017 Feb;17(2):200-216. doi: 10.1002/tcr.201600083. Epub 2016 Aug 15.

Efficient ruthenium-, rhodium-, palladium-, copper- and iridium-catalysed methodologies have been recently developed for the synthesis of quinolines by the reaction of 2-aminobenzyl alcohols with carbonyl compounds (aldehydes and ketones) or the related alcohols. The reaction is assumed to proceed...

Polyaniline-Coated Carbon Nanotube Ultrafiltration Membranes: Enhanced Anodic Stability for In Situ Cleaning and Electro-Oxidation Processes.

ACS applied materials & interfaces

Duan W, Ronen A, Walker S, Jassby D.
PMID: 27525344
ACS Appl Mater Interfaces. 2016 Aug 31;8(34):22574-84. doi: 10.1021/acsami.6b07196. Epub 2016 Aug 22.

Electrically conducting membranes (ECMs) have been reported to be efficient in fouling prevention and destruction of aqueous chemical compounds. In the current study, highly conductive and anodically stable composite polyaniline-carbon nanotube (PANI-CNT) ultrafiltration (UF) ECMs were fabricated through a...

Crystal structure and computational study of 2,4-di-chloro-N-[(E)-(5-nitro-thio-phen-2-yl)methyl-idene]aniline.

Acta crystallographica. Section E, Crystallographic communications

Köysal Y, Bülbül H, Gümüş S, Ağar E, Soylu MS.
PMID: 27536410
Acta Crystallogr E Crystallogr Commun. 2016 Jul 22;72:1187-9. doi: 10.1107/S2056989016011816. eCollection 2016 Aug 01.

The title compound, C11H6Cl2N2O2S, is a Schiff base that incorporates an N-bound 2,4-di-chloro-phenyl and a C-bound 5-nitro-thio-phene ring. The mol-ecule is approximately planar, the maximum deviation from the mean plane being 0.233 (4) Å for the C=N N atom....

A new class of N-H excited-state intramolecular proton transfer (ESIPT) molecules bearing localized zwitterionic tautomers.

Physical chemistry chemical physics : PCCP

Stasyuk AJ, Chen YT, Chen CL, Wu PJ, Chou PT.
PMID: 27537476
Phys Chem Chem Phys. 2016 Sep 21;18(35):24428-36. doi: 10.1039/c6cp05236c. Epub 2016 Aug 18.

A series of new amino (NH)-type intramolecular hydrogen-bonding (H-bonding) compounds have been strategically designed and synthesized. These molecules comprise a 2-(imidazo[1,2-a]pyridin-2-yl)aniline moiety, in which one of the amino hydrogens was replaced with substituents of different electronic properties. This, together...

Showing 1 to 12 of 4690 entries