Synthesis, Generic Dyeing of Nindigo Derivatives on Unmodified Polypropylene; First Time Application in Dyeing Technology

Hydrophobic nindigo dyes were designed and successfully synthesized from indigo by reacting with substituted anilines in a simple route. Four nindigo dyes were fruitfully analyzed by 1H NMR 13C NMR, electronic and mass spectrometry. Here, we have firstly introduced these nindigo dyes into dyeing area for the dyeing of unmodified polypropylene fiber in aqueous medium. Dyeing experiments has been performed by using didodecyldimethylammonium bromide dispersing agent to make dye-dispersant complex for enhancing the dispersion of dyes. All the dyes were displayed profound blue color hue on polypropylene. The dyeing efficiency and dye fixation order of the nindigo dyes are 3d > 3c ≥ 3b > 3a. Compound 3d having higher the hydrophobic character (logP ═ 7.04), so greater the dye ability on the polypropylene fiber and exhibiting deep coloration.

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Halogenated anthraquinones from the rare southern Illinois lichen Lasallia Papulosa

The Lichenologist ◽

10.1006/lich.2002.0419 ◽

2002 ◽

Vol 34 (6) ◽

pp. 521-525 ◽

Cited By ~ 2

Author(s):

Peter A. Cohen

Keyword(s):

Mass Spectrometry ◽

Secondary Metabolites ◽

Natural Habitat ◽

The Other ◽

Uv Spectrophotometry ◽

Southern Illinois ◽

H Nmr ◽

First Time ◽

Foliose Lichen ◽

C Nmr

AbstractFour anthraquinones were isolated from the foliose lichen, Lasallia papulosa (Ach.) Llano. Two of the anthraquinones are known compounds, previously isolated from Lasallia papulosa, while the other two were reported previously as secondary metabolites from laboratory-cultured Nephroma laevigatum, and are isolated here for the first time from lichens in their natural habitat. All compounds were characterized by UV spectrophotometry, mass spectrometry, 1H NMR and 13C NMR. The products were identified as 7-chloroemodin, valsarin (7-chloro-5-hydroxyemodin), 5-chloro-1-O-methylemodin and 5-chloro-1-O-methyl-ω-hydroxyemodin.

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Imino Diels–Alder reaction — An efficient synthetic protocol for 2-methyl-4-substituted tetrahydroquinolines catalyzed by copper dipyridine dichloride

Canadian Journal of Chemistry ◽

10.1139/v10-016 ◽

2010 ◽

Vol 88 (5) ◽

pp. 443-452 ◽

Cited By ~ 9

Author(s):

C. S. Kavitha ◽

K. M. Hosamani ◽

R. S. Harisha

Keyword(s):

Elemental Analysis ◽

Alder Reaction ◽

Diels Alder ◽

Reusable Catalyst ◽

Substituted Anilines ◽

H Nmr ◽

Diels Alder Reaction ◽

First Time ◽

C Nmr

For the first time, copper dipyridine dichloride (CuPy2Cl2) is used as an efficient and reusable catalyst for the imino Diels–Alder reaction of para-substituted anilines with N-vinylpyrrolidinone, N-vinylcarbazole, and N-vinylcaprolactam in acetonitrile to afford the corresponding 2-methyl-4-substituted-1,2,3,4-tetrahydroquinoline derivatives in excellent yields with good purity. The products were characterized by FTIR, 1H NMR, 13C NMR, MS, and elemental analysis.

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New Method for Nucleophilic Substitution on Hexachlorocyclotriphosphazene by Allylamine Using an Algerian Proton Exchanged Montmorillonite Clay (Maghnite-H+) as a Green Solid Catalyst

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS ◽

10.9767/bcrec.11.2.541.151-160 ◽

2016 ◽

Vol 11 (2) ◽

pp. 151 ◽

Cited By ~ 6

Author(s):

Lahouaria Medjdoub ◽

Belbachir Mohammed

Keyword(s):

Nucleophilic Substitution ◽

Room Temperature ◽

Montmorillonite Clay ◽

New Method ◽

Solid Catalyst ◽

H Nmr ◽

Flight Mass Spectrometry ◽

Crystalline Product ◽

First Time ◽

C Nmr

Nucleophilic substitution on hexachlorocyclotriphosphazene (HCCTP) with allylamine in order to give hexa(allylamino)cyclotriphosphazene (HACTP) is performed for the first time under mild conditions by using diethylether as solvent to replace benzene which is very toxic. The reaction time is reduced to half and also performed at room temperature but especially in the presence of an eco-catalyst called Maghnite-H+. This catalyst has a significant role in the industrial scale. In fact, the use of Maghnite is preferred for its many advantages: a very low purchase price compared to other catalysts, the easy removal of the reaction mixture. Then, Maghnite-H+ is became an excellent catalyst for many chemical reactions. The structure of HACTP synthesized in the presence of Maghnite-H+ to 5% by weight is confirmed by 1H-NMR, 13C-NMR, 31P-NMR (Nuclear magnetic resonance) and FTIR (Fourier Transform Infrared spectroscopy). MALDI-TOF (Matrix-Assisted Laser Desorption/Ionisation-time-of-flight mass spectrometry) is used to establish the molecular weight of HACTP which is 471 g/mol. DSC (Differential Scanning Calorimetery) and TGA (Thermogravimetric Analysis) show that HACTP is a crystalline product with a melting point of 88 °C. It is reactive after melting but is degraded from 230 °C. Copyright © 2016 BCREC GROUP. All rights reservedReceived: 28th September 2015; Revised: 5th December 2015; Accepted: 4th January 2016How to Cite: Medjdoub, L., Mohammed, B. (2016). New Method for Nucleophilic Substitution on Hexachlorocyclotriphosphazene by Allylamine Using an Algerian Proton Exchanged Montmorillonite Clay (Maghnite-H+) as a Green Solid Catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 11 (2): 151-160 (doi:10.9767/bcrec.11.2.541.151-160)Permalink/DOI: http://dx.doi.org/10.9767/bcrec.11.2.541.151-160

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Crystal structure of 3-chlorobenzo[b]thiophene-2-carbonyl chloride

Journal of Chemical Research ◽

10.3184/030823409x466041 ◽

2009 ◽

Vol 2009 (7) ◽

pp. 437-439 ◽

Cited By ~ 1

Author(s):

Sara Tarighi ◽

Alireza Abbasi ◽

Sara Zamanian ◽

Alireza Badiei ◽

Mahmood Ghoranneviss

Keyword(s):

Crystal Structure ◽

Mass Spectrometry ◽

Cinnamic Acid ◽

Thionyl Chloride ◽

Structure Determination ◽

X Ray ◽

Packing Structure ◽

H Nmr ◽

Carbonyl Chloride ◽

C Nmr

3-Chlorobenzo[b]thiophene-2-carbonyl chloride was synthesised from cinnamic acid and thionyl chloride. The single crystal X-ray structure determination confirmed the earlier proposed structure and the product was further characterised by 1H NMR, 13C NMR and mass spectrometry. The X-ray structure determination revealed two sets of symmetry related molecules along the b-axis that are loosely connected by relatively weak CH…π ( 3.626, 3.628 Å) interactions, giving rise to two infinite chains. The packing structure is dominated by Van der Waals forces between these chains. No significant π–π interactions are found in the crystal structure.

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An efficient synthesis of 3-alkyl-2-diversity-substituted benzofuro[3,2-d]pyrimidin-4(3H)-one derivatives

Journal of Chemical Research ◽

10.1177/1747519819858734 ◽

2019 ◽

Vol 43 (5-6) ◽

pp. 201-204 ◽

Cited By ~ 1

Author(s):

Hong-Mei Wang ◽

Tian-Shuai Wang ◽

Sheng-Jie He ◽

Zong-Yun Chen ◽

Yang-Gen Hu

Keyword(s):

Mass Spectrometry ◽

Sodium Ethoxide ◽

Catalytic Amount ◽

Alkyl Halides ◽

Efficient Synthesis ◽

Pyrimidine Derivatives ◽

Excess Carbon ◽

H Nmr ◽

Aliphatic Esters ◽

C Nmr

Benzofuro[3,2- d]pyrimidine derivatives are prepared using aza-Wittig reactions of iminophosphoranes with n-butyl isocyanate at 40–50 °C to give carbodiimide intermediates, which are reacted with nitrogen-oxygen-containing nucleophiles to give 3-alkyl-2-amino (aryloxy/alkoxy)-benzofuro[3,2- d]pyrimidin-4(3 H)-ones in satisfactory yields in the presence of a catalytic amount of sodium ethoxide or K2CO3. The iminophosphorane also reacts directly with excess carbon disulfide, followed by n-propylamine; further reaction with alkyl halides or halogenated aliphatic esters in the presence of anhydrous K2CO3 produces the corresponding 2-alkylthio-3-n-propyl-benzofuro[3,2- d]pyrimidin-4(3 H)-ones in good yields. Their structures of the products are confirmed by 1H NMR, 13C NMR, mass spectrometry, infrared and elemental analysis.

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Chloro- and BF2bdk-substituted dithienylethene: Synthesis, photophysical properties, and optical switching behavior

Journal of Chemical Research ◽

10.1177/1747519820951410 ◽

2020 ◽

pp. 174751982095141

Author(s):

Zhiqiang Lu ◽

Wenbo Yang ◽

Yanhui Bai ◽

Mo Wang ◽

Zixu Li ◽

...

Keyword(s):

Mass Spectrometry ◽

Optical Switching ◽

High Resolution Mass Spectrometry ◽

Photophysical Properties ◽

Red Light ◽

Switching Behavior ◽

Polar Solvents ◽

H Nmr ◽

Resolution Mass ◽

C Nmr

A novel chloro- and BF2bdk-substituted dithienylethene derivative, in which a chlorine atom and a difluoroboron β-diketonate (BF2bdk) group are appended at the termini of the dithienylethene core, is developed. The structure was confirmed by 1H NMR, 13C NMR, and high-resolution mass spectrometry (electrospray ionization). It displayed solvent-dependent photophysical properties, and blue/red light-triggered optical switching behavior in nonpolar or less polar solvents.

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Cardenolide aus Ornithogalum nutans (2 n = 28), 1. Mitteilung / Cardenolides from Ornithogalum nutans (2 n = 28), Part

Zeitschrift für Naturforschung B ◽

10.1515/znb-1992-1017 ◽

1992 ◽

Vol 47 (10) ◽

pp. 1444-1458 ◽

Cited By ~ 20

Author(s):

Roland Ferth ◽

Andreas Baumann ◽

Wolfgang Robien ◽

Brigitte Kopp

Keyword(s):

Acid Hydrolysis ◽

Column Chromatography ◽

Structure Elucidation ◽

European Species ◽

H Nmr ◽

First Time ◽

Hydrolysis Of ◽

C Nmr

From leaves and bulbs of Ornithogalum nutans L. (2 n = 28), seventeen cardenolides were isolated by column chromatography, DCCC and TLC. The structure elucidation was performed by means of 1H NMR, 13C NMR, HH-Cosy, HC-Cosy and FAB-MS studies and identification of the sugar moieties by GLC after acid hydrolysis of the cardenolides. Sugar compounds were identified as digitoxose, 3-acetyl-digitoxose, 2-deoxy-allose, 6-deoxy-allose, rhamnose, xylose and apiose. Glycosides of 7β,15β, 16 α-trihydroxy-uzarigenin, 8β,16 α-dihy-droxy, 15-oxo-uzarigenin, 3 β, 11β-dihydroxy, 12-oxo, 18-nor-5 α-card-13-enolid, 11 α-hydroxygitoxigenin, 12-oxo,8, 14β-epoxy-uzarigenin, 8β-hydroxy, 15-oxo-uzarigenin and 12β-hydroxy-oleandrigenin are described for the first time, the presence of oleandrigenin-glycosides in the genus Ornithogalum was not known until now. Ornithogalum nutans L. shows a different cardenolide pattern from the second European species of the section Myogalum (LINK) PETERM. - Ornithogalum boucheanum (KUNTH) ASCHERS.

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Synthesis, in vitro inhibition effect of novel phthalocyanine complexes as carbonic anhydrase and paraoxonase enzyme inhibitors

Journal of Porphyrins and Phthalocyanines ◽

10.1142/s1088424620500170 ◽

2020 ◽

Vol 24 (08) ◽

pp. 1047-1053

Author(s):

Emre Güzel ◽

Barış Seçkin Arslan ◽

Kübra Çıkrıkçı ◽

Adem Ergün ◽

Nahit Gençer ◽

...

Keyword(s):

Carbonic Anhydrase ◽

Enzyme Inhibitors ◽

Inhibition Effect ◽

H Nmr ◽

Vis Spectroscopy ◽

Ft Ir ◽

First Time ◽

Ft Ir Spectroscopy ◽

C Nmr

The preparation and assessment of carbonic anhydrase and paraoxonase enzyme inhibition properties of 3-(2-(5-amino-4-(4-bromophenyl)-3-methyl-1H-pyrazol-1-yl)ethoxy)phthalonitrile (2) and its nitrogen-containing non-peripheral phthalocyanine derivatives (3 and 4) are reported for the first time. The new phthalonitrile and its phthalocyanine derivatives have been elucidated by FT-IR spectroscopy, 1H-NMR, [Formula: see text]C-NMR, mass and UV-vis spectroscopy. The results demonstrated that all synthesized compounds moderately inhibited carbonic anhydrase and paraoxonase enzymes. Among the compounds, the most active ones were found to be compound 4 for PON (Ki : 0.14 [Formula: see text]M), compound 3 for hCA I (Ki : 22.52 [Formula: see text]M) and compound 1 for hCA II (Ki : 13.62 [Formula: see text]M).

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Synthesis of Novel Fluorescent Sensors Based on Naphthalimide Fluorophores for the Highly Selective Hg2+-Sensing

Journal of Chemistry ◽

10.1155/2015/165295 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

Yordkhuan Tachapermpon ◽

Pornthip Piyanuch ◽

Narupon Prapawattanapol ◽

Kanjarat Sukrat ◽

Kullatat Suwatpipat ◽

...

Keyword(s):

Mass Spectrometry ◽

Fluorescent Sensors ◽

Nucleophilic Aromatic Substitution ◽

Aromatic Substitution ◽

One Pot ◽

H Nmr ◽

Sensitivity And Selectivity ◽

New Sensors ◽

Interfering Ions ◽

C Nmr

With an aim to develop the new sensors for optical detection of Hg2+ions, two novel fluorometric sensors were designed and successfully prepared using 2-(3-(2-aminoethylsulfanyl)propylsulfanyl)ethanamine and one or twoN-methylnaphthalimide moieties (1and2). Sensor1was obtained viaN-alkylation,N-imidation and a one-pot nucleophilic aromatic substitution, andN-formylation of the amine, while sensor2was prepared viaN-alkylation,N-imidation, and nucleophilic aromatic substitution. The characterization, including1H NMR,13C NMR, and mass spectrometry, was then performed for1and2. The Hg2+-binding behaviors of the sensors were investigated in terms of sensitivity and selectivity by fluorescence spectroscopy. Sensor1especially provided the reversible and highly Hg2+-selective ON-OFF fluorescence behavior by discriminating various interfering ions such as Pb2+, Co2+, Cd2+, Mn2+, Fe2+, K+, Na+, and in particular Cu2+and Ag+with a detection limit of 22 ppb toward Hg2+ions.

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