scholarly journals Synthesis and plant growth activity of 2-(4-oxochromen-3-yl)benzothiazolium and -benzoxazolium bromides

2021 ◽  
Vol 8 (1) ◽  
pp. 79-86
Author(s):  
Mária Hanselová ◽  
Renáta Gašparová ◽  
Margita Lácová
Keyword(s):  
Plant Growth ◽  
Benzyl Bromide ◽  
Growth Stimulation ◽  
Facile Synthesis ◽  
One Pot ◽  
One Pot Condensation ◽  
Cucumber Root ◽  
Growth Activity ◽  
The One ◽  
Stimulation Of

A facile synthesis of novel 2-(4-oxochromen-3-yl) benzothiazolium bromides 4 and benzoxazolium bromide 5 using the one-pot condensation of substituted 4-oxochromene-3-carboxaldehydes 1 with 2-methylbenzothiazole (2a) or 2-methylbenzoxazole (2b) and benzyl bromide is described. The effects of benzothiazolium bromides 4 on the growth stimulation of the cucumber and retardant activity on corn seedlings were investigated. They inhibited growth of cucumber (root and hypocotyl) and shoots of corn at the range of 10 – 100 ppm and stimulated at 0.1 – 1 ppm concentrations.

A new more atom-efficient multi-component approach to tetrasubstituted imidazoles: one-pot condensation of nitriles, amines and benzoin

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67281-67289 ◽  
Author(s):  
Ali Khalafi-Nezhad ◽  
Mohsen Shekouhy ◽  
Hashem Sharghi ◽  
Jasem Aboonajmi ◽  
Abdolkarim Zare
Keyword(s):  
Primary Amines ◽  
One Pot ◽  
One Pot Condensation ◽  
Component Approach ◽  
The One ◽  
Tetrasubstituted Imidazoles

A new more atom-efficient multi-component approach for the synthesis of tetrasubstituted imidazoles via the one-pot condensation of nitriles, primary amines and benzoin has been described.

Facile Synthesis of Symmetrical Homonucleotides of Antiviral Nucleosides

2014 ◽  
Vol 1046 ◽  
pp. 96-99
Author(s):  
Jian Sun ◽  
Shan Shan Gong ◽  
Qi Sun
Keyword(s):  
Facile Synthesis ◽  
One Pot ◽  
The One ◽  
Antiviral Nucleosides

A facile method for the one-pot preparation of homodinucleotides of AZT and d4T from corresponding nucleoside 5′-phosphoropiperidates with 4,5-dicyanoimidazole (DCI) as the activator has been developed.

Facile synthesis of CuCr2O4 spinel nanoparticles: a recyclable heterogeneous catalyst for the one pot hydroxylation of benzene

2014 ◽  
Vol 4 (12) ◽  
pp. 4232-4241 ◽  
Author(s):  
Shankha S. Acharyya ◽  
Shilpi Ghosh ◽  
Shubhadeep Adak ◽  
Takehiko Sasaki ◽  
Rajaram Bal
Keyword(s):  
Hydrothermal Synthesis ◽  
Synthesis Method ◽  
Facile Synthesis ◽  
One Pot ◽  
Nanoparticle Catalysts ◽  
Hydroxylation Of Benzene ◽  
The One ◽  
Recyclable Heterogeneous Catalyst ◽  
Selective Hydroxylation ◽  
Spinel Nanoparticles

A facile hydrothermal synthesis method is developed to prepare CuCr2O4 spinel nanoparticle catalysts with sizes between 25–50 nm for selective hydroxylation of benzene.

scholarly journals A Facile Synthesis and Biological Screening of Pyrimidine Derivatives under Ultrasonic Irradiations by ZnCr2O4 Nano-Particles Catalyst

2021 ◽  
Vol 11 (1) ◽  
pp. 2996-3005
Keyword(s):  
Biological Activities ◽  
Aromatic Aldehydes ◽  
Vital Role ◽  
Nano Particles ◽  
Facile Synthesis ◽  
Pyrimidine Derivatives ◽  
One Pot ◽  
Biological Screening ◽  
Characterization Methods ◽  
The One

Using a recyclable catalyst, facile synthesis of pyrimidine derivatives (4a-e) is attributed through the one-pot multi-component reaction of 2-amino benzimidazole (1) substituted aromatic aldehydes (2a-e) with malononitrile (3) under ultrasonic irradiations. Synthesized derivatives might help society in getting more active pharmaceutical constituents. In this present work, series of substituted pyrimidine (4a-e) were synthesized and confirmed with different spectra characterization methods. The ZnCr2O4 nano-particles play a vital role in eco-friendly, highly efficient, recyclable heterogeneous nanocatalyst. Furthermore, synthesized pyrimidine derivatives showed significant biological activities. Advantages of this handy route are less reaction time, simple isolation, and highly yielded products.

An expedient microwave assisted regio- and stereoselective synthesis of spiroquinoxaline pyrrolizine derivatives and their AChE inhibitory activity

2017 ◽  
Vol 41 (2) ◽  
pp. 873-878 ◽  
Author(s):  
Adinarayana Murthy Akondi ◽  
Sowmya Mekala ◽  
Mannepalli Lakshmi Kantam ◽  
Rajiv Trivedi ◽  
L. Raju Chowhan ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Stereoselective Synthesis ◽  
Facile Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Ache Inhibitory Activity ◽  
The One

We report here an efficient protocol for the one-pot facile synthesis of spiro[indeno[1,2-b]quinoxaline-11,3′-pyrrolizine]heterocyclic scaffolds and their AChE inhibitory studies.

Facile synthesis of hierarchical pore foam catalysts with Brønsted–Lewis acid sites for the one-pot conversion of cellulose to 5-hydroxymethylfurfural

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 80368-80382 ◽  
Author(s):  
Yating Shen ◽  
Yunlei Zhang ◽  
Enwei Zhu ◽  
Yao Chen ◽  
Pei Jin ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Acid Sites ◽  
Facile Synthesis ◽  
Lewis Acid Sites ◽  
One Pot ◽  
Whole Process ◽  
Internal Phase ◽  
Hierarchical Pore ◽  
The One

The Whole process of synthesis of HPFCs by Pickering high internal phase emulsions and application in conversion of cellulose to HMF.

scholarly journals Zr(HSO4)4: An Efficient Catalyst for the Synthesis of 3-(2'- Benzothiazolyl)-2,3-dihydroquinazolin- 4(1H)-ones

2012 ◽  
Vol 9 (2) ◽  
pp. 739-743 ◽  
Author(s):  
Liqiang Wu
Keyword(s):  
Solvent Free ◽  
Isatoic Anhydride ◽  
Efficient Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
One Pot Condensation ◽  
The One

A simple and efficient synthesis of 3-(2'-benzothiazolyl)-2,3-dihydro quinazolin-4(1H)- ones has been accomplished by the one-pot condensation of isatoic anhydride, aldehyde and 2-aminobenzothiazole under solvent-free conditions in the presence of Zr(HSO4)4.

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