A Convenient Method for the Preparation of Some New Derivatives of 1,3,5-s- Triazine under Solvent Free Condition

Heterocycles ◽  
2004 ◽  
Vol 63 (8) ◽  
pp. 1897 ◽  
Author(s):  
Davood Azarifar ◽  
Mohammad Ali Zolfigol ◽  
Ali Forghaniha
Keyword(s):  
Convenient Method ◽  
Solvent Free ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Derivatives Of

Magnesium Perchlorate Catalyzed Phospha-Michael Addition of Dialkyl Phosphite to Chalcone

2018 ◽  
Vol 15 (7) ◽  
pp. 1020-1023 ◽  
Author(s):  
Adarsh Sahu ◽  
Shweta Mishra ◽  
Asmita Gajbhiye ◽  
Ram Kishore Agrawal
Keyword(s):  
Bond Formation ◽  
Solvent Free ◽  
Diethyl Phosphite ◽  
Unsaturated Ketone ◽  
Dialkyl Phosphite ◽  
Magnesium Perchlorate ◽  
One Pot ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Derivatives Of

Aim and Objective: Phosphonate possesses a broad range of applications ranging from agrochemistry to medicines. Because of the synthetic and biological importance of phosphonate, their chemistry has stimulated an increasing interest. Hence we developed an efficient and eco-friendly Mg(ClO4)2 catalyzed one pot, solvent free synthesis of phosphonate derivatives of chalcones. Materials and Methods: Magnesium perchlorate phosphonate derivatives of chalcones were synthesized. The reactions were executed at room temperature in the presence of Anhydrous Magnesium perchlorate Anhy. Mg(ClO4)2 under solvent free condition, affording high yield of the product. The cardinal significance of the method lies in its uncomplicated and eco- friendly experimental conditions. Results: The PMA method for P-C bond formation, using dialkyl phosphite with chalcone, was performed in the presence of Anhydrous Magnesium perchlorate under solvent free condition. Despite the solvent free condition, the methodology is efficient since it is required only in catalytic amount of Anhy. Mg(ClO4)2 in one pot reaction. Results demonstrated that the catalytic PMA of dimethyl phosphite, diethyl phosphite, diisopropyl phosphite and dibutyl phosphite with chalcone generates desired products with a percentage yield of 60-80%. Conclusion: We have developed a new efficient PMA method for P-C bond formation, using dialkyl phosphite with α,β-unsaturated ketone i.e. chalcone. To the best of our knowledge, Anhy. Mg(ClO4)2 catalyzed phosphamicheal addition of dialkyl phosphite with chalcones was found to be a new and efficient method for various biological applications.

Fe3O4@SiO2-Propyl covalented dapsone-copper complex: Synthesis, characterization and application for the synthesis of new derivatives of azo-linked thiazolidinones and their solvatochromism evaluation

2021 ◽  
Vol 17 ◽  
Author(s):  
Leila Zare Fekri
Keyword(s):  
Electron Microscopy ◽  
Thioglycolic Acid ◽  
Biological Activities ◽  
Solvent Free ◽  
Gravimetric Analysis ◽  
One Pot ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Three Component Reaction ◽  
Derivatives Of

Background: Thiazolidinone-4-ones belong to an important heterocyclic compounds because of their broad spectrum of biological activities. Several methods for the synthesis of 4-thiazolidinones were reported in the literature. The main synthetic routes to synthesize 1,3-thiazolidin-4-ones is the three component reaction between amine, a carbonyl compound and a mercapto-acid. Objective: Dapsone-Cu supported on silica coated Fe3O4 (Fe3O4@SiO2-pr@dapsone-Cu) as a new heterogeneous nanoparticle catalyst was synthesized and the structure and morphology of this catalyst were characterized by Fourier transform infrared spectroscopy (FT-IR), Xray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), zeta potential, vibrating sample magnetometry (VSM) and thermal gravimetric analysis (TGA). The new synthesized catalyst was applied as an effective nanocatalyst for the synthesis of new derivatives of azo-linked thiazolidinones through one-pot multi-component reaction of various aromatic aldehydes, thioglycolic acid and 4-aminoazobenzene under solvent-free condition. Methods: A mixture of aldehyde, thioglycolic acid, 4-aminoazobenzene (1 mmol) and 0.05 g Fe3O4@SiO2@dapsone-Cu MNPs were stirred at room temperature under solvent-free condition. Results: We report a facile, green, new and efficient method for the synthesis of thiazolidine-4-ones through three component reaction of various aldehydes, thioglycolic acid and 4-aminoazobenzene in the presence of Fe3O4@SiO2-propyl@dapsone-Cu complex under solvent-free reaction. Conclusion: This new procedure has the notable advantages such as excellent yields, short reaction time, operational simplicity, easy work-up, eco-friendly and using a non-toxic catalyst. Also, the catalyst is easily recoverable in the presence of an enourmous magnet and reused for six consecutive reaction cycles without significant loss of activity.

scholarly journals A Convenient Method for Synthesis of Benzo[d]thiazoles in Water and Solvent Free Condition

2013 ◽  
Vol 34 (9) ◽  
pp. 2819-2821 ◽  
Author(s):  
Soon Byung Yoon ◽  
Eun Jeong Chun ◽  
Young Ri Noh ◽  
Yong Jin Yoon ◽  
Sang-Geyong Lee
Keyword(s):  
Convenient Method ◽  
Solvent Free ◽  
Free Condition ◽  
Solvent Free Condition

Phase‐controlled synthesis of zeolites from sodium aluminosilicate under OSDA/solvent‐free condition

2021 ◽  
Author(s):  
Yoshitaka Mizuno ◽  
Koji Miyake ◽  
Shunsuke Tanaka ◽  
Norikazu Nishiyama ◽  
Choji Fukuhara ◽  
...  
Keyword(s):  
Solvent Free ◽  
Controlled Synthesis ◽  
Free Condition ◽  
Sodium Aluminosilicate ◽  
Solvent Free Condition

Sunlight‐Assisted Photocatalytic Sustainable Synthesis of 1,4‐Disubstituted 1,2,3‐Triazoles and Benzimidazoles Using TiO 2 −Cu 2 (OH)PO 4 Under Solvent‐Free Condition

2021 ◽  
Vol 6 (6) ◽  
pp. 1210-1215
Author(s):  
Tayyala Kiranmye ◽  
Murugan Vadivelu ◽  
Deviga Magadevan ◽  
Sugirdha Sampath ◽  
Kannabiran Parthasarathy ◽  
...  
Keyword(s):  
Solvent Free ◽  
Free Condition ◽  
Solvent Free Condition

scholarly journals Highly Efficient Acetalization and Ketalization Catalyzed by Cobaloxime under Solvent-Free Condition

Catalysts ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 48 ◽  
Author(s):  
Yang Zong ◽  
Liting Yang ◽  
Shanyu Tang ◽  
Longjia Li ◽  
Wanjie Wang ◽  
...  
Keyword(s):  
Solvent Free ◽  
Free Condition ◽  
Highly Efficient ◽  
Solvent Free Condition

ChemInform Abstract: FeCl3/Pyridine: Dual-Activation in Opening of Epoxide with Carboxylic Acid under Solvent Free Condition.

ChemInform ◽  
2014 ◽  
Vol 45 (7) ◽  
pp. no-no
Author(s):  
Yichao Zhao ◽  
Wen Wang ◽  
Jian Li ◽  
Feng Wang ◽  
Xiufang Zheng ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Solvent Free ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Dual Activation
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