A catalyst-free approach to a novel imidazo [4,5-f][1,10] phenanthroline ligand and its corresponding ruthenium(ii) complex: insights into their applications in colorimetric anion sensing

2014 ◽  
Vol 38 (11) ◽  
pp. 5536-5543 ◽  
Author(s):  
Hamid Khanmohammadi ◽  
Khatereh Rezaeian
Keyword(s):  
Colorimetric Detection ◽  
Anion Sensing ◽  
Green Protocol ◽  
Catalyst Free ◽  
Phenanthroline Ligand

Novel imidazo[4,5-f][1,10]phenanthroline ligand and its corresponding Ru(ii) complex are synthesized from green protocol for colorimetric detection of anions in water.

A green protocol for catalyst-free synthesis of 1-oxo-hexahydroxanthenes in aqueous medium

2010 ◽  
Vol 13 (12) ◽  
pp. 1429-1432 ◽  
Author(s):  
D.M. Pore ◽  
T.S. Shaikh ◽  
K.A. Undale ◽  
D.S. Gaikwad
Keyword(s):  
Aqueous Medium ◽  
Green Protocol ◽  
Catalyst Free

ChemInform Abstract: A Catalyst-Free Green Protocol for the Synthesis of Pyranopyrazoles Using Room Temperature Ionic Liquid Choline Chloride-Urea.

ChemInform ◽  
2015 ◽  
Vol 46 (18) ◽  
pp. no-no
Author(s):  
Toreshettahally R. Swaroop ◽  
Kothanahally S. Sharath Kumar ◽  
Mariyappan Palanivelu ◽  
Somu Chaitanya ◽  
Kanchugarakoppal S. Rangappa
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Choline Chloride ◽  
Room Temperature Ionic Liquid ◽  
Green Protocol ◽  
Catalyst Free

scholarly journals A Facile and Catalyst-Free Microwave-Promoted Multicomponent Reaction for the Synthesis of Functionalised 1,4-Dihydropyridines With Superb Selectivity and Yields

2021 ◽  
Vol 9 ◽  
Author(s):  
Nagaraju Kerru ◽  
Suresh Maddila ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Spectroscopic Analysis ◽  
High Selectivity ◽  
Water Medium ◽  
One Pot ◽  
Green Protocol ◽  
Catalyst Free ◽  
Active Methylene Compounds ◽  
The One ◽  
Pyrimidine Analogs ◽  
Active Methylene

We report a highly efficient green protocol for developing a novel library of 1,2,4-triazole-tagged 1,4-dihydropyridine analogs through the one-pot process from the four-component fusion of the 1H-1,2,4-triazol-3-amine with different chosen aldehydes, diethyl acetylenedicarboxylate, and active methylene compounds in a water medium under microwave irradiation and catalyst-free conditions. Excellent yields (94–97%) of the target products were achieved with high selectivity with a short reaction time (<12 min) at room temperature. The structures of the synthesized pyrimidine analogs were established by NMR and HRMS spectroscopic analysis. Simple workup, impressive yields, no column chromatography, green solvent, rapid reaction, and excellent functional group tolerance are the benefits of this protocol.

scholarly journals A Green Protocol for Catalyst-Free Syntheses of Pyrazole in Glycerol-Water Solution

2015 ◽  
Vol 27 (9) ◽  
pp. 3205-3207 ◽  
Author(s):  
Zhen-Li Min ◽  
Qian Zhang ◽  
Xing Hong ◽  
Xiao-Lu Cao ◽  
Xia-Min Hu
Keyword(s):  
Water Solution ◽  
Glycerol Water ◽  
Green Protocol ◽  
Catalyst Free

A domino green method for the rapid synthesis of novel fused isoquinoline derivatives via Knoevenagel/Michael/cyclization reactions on aqueous media and their photophysical properties

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 95539-95544 ◽  
Author(s):  
Nandigama Satish Kumar ◽  
L. Chandrasekhara Rao ◽  
N. Jagadeesh Babu ◽  
H. M. Meshram
Keyword(s):  
Photophysical Properties ◽  
Aqueous Media ◽  
Cyclization Reactions ◽  
Rapid Synthesis ◽  
Green Method ◽  
One Pot ◽  
Green Protocol ◽  
Catalyst Free ◽  
Isoquinoline Derivatives

An expedient, eco-friendly and green-protocol has been developed for the synthesis of novel 4-imino-2-aryl-4H-pyrido[2,1-a]isoquinoline-3-carbonitrile derivatives via Knoevenagel/Michael/cyclisation reactions in one pot under catalyst-free conditions on aqueous media.

A Catalyst-free Green Protocol for the Synthesis of Pyranopyrazoles Using Room Temperature Ionic Liquid Choline Chloride-urea

2014 ◽  
Vol 51 (6) ◽  
pp. 1866-1870 ◽  
Author(s):  
Toreshettahally R. Swaroop ◽  
Kothanahally S. Sharath Kumar ◽  
Mariyappan Palanivelu ◽  
Somu Chaitanya ◽  
Kanchugarakoppal S. Rangappa
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Choline Chloride ◽  
Room Temperature Ionic Liquid ◽  
Green Protocol ◽  
Catalyst Free

Catalyst-free ultrasonic-promoted multicomponent synthesis of tertiary α-amino phosphonates

2017 ◽  
Vol 41 (14) ◽  
pp. 6653-6660 ◽  
Author(s):  
Reddi Mohan Naidu Kalla ◽  
Jaeyeong Bae ◽  
Il Kim
Keyword(s):  
Ultrasound Irradiation ◽  
Multicomponent Synthesis ◽  
Green Protocol ◽  
Catalyst Free ◽  
Highly Efficient ◽  
Amino Phosphonates

A highly efficient and green protocol has been developed for the synthesis of novel tertiary α-amino phosphonates via a catalyst-free multi-component Kabachnik–Fields reaction under ultrasound irradiation.

scholarly journals Biogenic Silver Nanoparticles for Trace Colorimetric Sensing of Enzyme Disrupter Fungicide Vinclozolin

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1604 ◽  
Author(s):  
Masood Hussain ◽  
Ayman Nafady ◽  
Sirajuddin ◽  
Ahmet Avcı ◽  
Erol Pehlivan ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Limit Of Detection ◽  
Colorimetric Detection ◽  
Localized Surface Plasmon ◽  
Syzygium Aromaticum ◽  
Colorimetric Sensing ◽  
Green Protocol ◽  
Vis Spectroscopy ◽  
Clove Extract ◽  
Average Size

We report a novel, simple, efficient, and green protocol for biogenic synthesis of silver nanoparticles (AgNPs) in aqueous solution using clove (Syzygium aromaticum) extract as a reducing and protecting agent. Ultraviolet-visible (UV-Vis) spectroscopy was employed to monitor the localized surface plasmon resonance (LSPR) band of clove extract-derived AgNPs prepared under various conditions. Fourier-transform infrared (FTIR) spectroscopy analysis provided information about the surface interaction of the clove extract with the AgNPs. Ultrahigh-resolution transmission electron microscopy (UHRTEM) results confirmed the formation of spherical, uniformly distributed clove extract-capped AgNPs with sizes in the range of 2–20 nm (average size: 14.4 ± 2 nm). Powder X-ray diffractometry analysis (PXRD) illustrated the formation of pure crystalline AgNPs. These AgNPs were tested as a colorimetric sensor to detect trace amounts of vinclozolin (VIN) by UV-Vis spectroscopy for the first time. The AgNP-based sensor demonstrated very sensitive and selective colorimetric detection of VIN, in the range of 2–16 µM (R2 = 0.997). The developed sensor was green, simple, sensitive, selective, economical, and novel, and could detect trace amounts of VIN with limit of detection (LOD) = 21 nM. Importantly, the sensor was successfully employed for the determination of VIN in real water samples collected from various areas in Turkey.

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