A rapid, microwave-assisted, one-pot cyclopropanation reaction to synthesize (4-ferrocenyl)benzoylcyclopropane in the solid state

2005 ◽  
Vol 83 (12) ◽  
pp. 2140-2143 ◽  
Author(s):  
Juxing Yin ◽  
Xiaolong Li ◽  
Xiaoli Wu ◽  
Baohua Chen ◽  
Zenglu Liu ◽  
...  
Keyword(s):  
Reaction Time ◽  
Solid State ◽  
Environmental Pollution ◽  
Intermediate Product ◽  
One Pot ◽  
Microwave Assisted ◽  
Sulfur Ylide

Some new (4-ferrocenyl)benzoylcyclopropanes were prepared rapidly via a microwave-assisted, one-pot cyclopropanation reaction in the solid state, directly using 4-ferrocenylacetophenone, aldehyde, and sulfur ylide as the starting materials. The main advantages of this procedure are convenient operation, shorter reaction time, lower environmental pollution, and no need to isolate the intermediate product (chalcone) in a separate step.Key words: 4-ferrocenylacetophenone, sulfur ylide, microwave-assisted, one-pot, solid state.

scholarly journals Microwave Assisted One Pot Synthesis of 3,4-Dihydropyrano[c]chromene Derivatives using [Emim]OH Ionic Liquid as Novel Catalyst

2019 ◽  
Vol 31 (4) ◽  
pp. 829-833
Author(s):  
D.S. Bhagat ◽  
S.G. Pande ◽  
M.V. Katariya ◽  
R.P. Pawar ◽  
P.S. Kendrekar
Keyword(s):  
Ionic Liquid ◽  
Reaction Time ◽  
High Yield ◽  
Reaction Conditions ◽  
One Pot ◽  
Short Reaction Time ◽  
Aryl Aldehydes ◽  
Microwave Assisted ◽  
Novel Catalyst ◽  
Work Up

One-pot efficient protocol to the synthesis of 2-amino-5-oxo-4,5-dihydropyrano(3,2-c)chromene-3-carbonitrile derivatives via condensation of various aryl aldehydes, dicyanomethane and 4-hydroxycoumarin in presence of Emim hydroxide as an excellent homogeneous liquid catalyst. The key advantages of this methodology are mild reaction conditions, novel catalyst, short reaction time, eco-friendly, easy work-up procedure and high yield of isolation of derivatives.

A Convenient One-Pot and Rapid Microwave-Assisted Synthesis of Biologically Active s-Triazolo[3,4-b][1,3,4]Thiadiazine and s-Triazolo[3,4-b][1,3,4]Thiadiazole Nanoarchitectonics

2020 ◽  
Vol 20 (5) ◽  
pp. 2917-2929
Author(s):  
Ahmed F. M. EL-Mahdy ◽  
Hassan A. H. EL-Sherief ◽  
Zeinab A. Hozien ◽  
Shiao-Wei Kuo
Keyword(s):  
Acetic Acid ◽  
Sulfuric Acid ◽  
Reaction Time ◽  
Catalytic Amount ◽  
Biologically Active ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Work Up ◽  
Temperature Time

A rapid and efficient one-pot protocol has been developed for the synthesis of s-triazolo[3,4-b][1,3,4]thiadiazine and s-triazolo[3,4-b][1,3,4]thiadiazole nanoarchitectonics through the reaction of s-triazoles with ketones and nitriles in acetic acid containing a catalytic amount of sulfuric acid under microwave irradiation in excellent yields. With this catalytic reaction, the cheap sulfuric acid as well as other acids were examined as catalysts and the highly toxic and irritating haloketones and halonitriles were avoided to form. The effects of microwave power, temperature, time, solvent and catalyst were examined. This method achieved a better performance; e.g., higher yields, shorter reaction time and easier work-up as compared to other conventional methods. Therefore, the proposed method will be readily applicable to the synthesis of biologically important compounds containing s-triazolo[3,4-b][1,3,4]thiadiazine and s-triazolo[3,4-b][1,3,4]thiadiazole framework.

ChemInform Abstract: Microwave-Assisted Synthesis of Substituted Cyclopropyl Ferrocenyl Ketones by a Sulfur Ylide Reaction under Solid-State Conditions.

ChemInform ◽  
2010 ◽  
Vol 33 (36) ◽  
pp. no-no
Author(s):  
Qi-hai Xu ◽  
Bao-hua Chen ◽  
Yong-xian Ma ◽  
Wan-yi Liu ◽  
Yong-min Liang
Keyword(s):  
Solid State ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Sulfur Ylide

Microwave-assisted solid-state sulphation of starch

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Hanna Staroszczyk ◽  
Maciej Fiedorowicz ◽  
Wei Zhong ◽  
Piotr Janas ◽  
Piotr Tomasik
Keyword(s):  
Reaction Time ◽  
Solid State ◽  
Sulphuric Acid ◽  
Microwave Oven ◽  
Acid Anhydride ◽  
Reagent Ratio ◽  
Microwave Assisted ◽  
Higher Doses

AbstractStarch was sulphated with pyridine.SO3 complex in the microwaveassisted solid state processes in multimodal microwave oven and, for comparison, also on convectional heating blends of solid reagents. Starch was less hydrolysed in microwave-assisted reactions. The degree of the esterification of the sulphuric acid anhydride depended to a lesser extent on the reaction time and the power applied, and more essentially on the reagent ratio, that is, dose of the sulphating agent. Its higher doses favoured depolymerization and esterification leading to diesters, that is, crosslinking.

A Rapid, Microwave-Assisted, One-Pot Cyclopropanation Reaction to Synthesize (4-Ferrocenyl)benzoylcyclopropane (IV) in the Solid State.

ChemInform ◽  
2006 ◽  
Vol 37 (39) ◽  
Author(s):  
Juxing Yin ◽  
Xiaolong Li ◽  
Xiaoli Wu ◽  
Baohua Chen ◽  
Zenglu Liu ◽  
...  
Keyword(s):  
Solid State ◽  
One Pot ◽  
Microwave Assisted

A microwave assisted one pot synthesis of novel ammonium based dicationic ionic liquids

RSC Advances ◽  
2015 ◽  
Vol 5 (16) ◽  
pp. 12139-12143 ◽  
Author(s):  
Darshak R. Bhatt ◽  
Kalpana C. Maheria ◽  
Jigisha K. Parikh
Keyword(s):  
Ionic Liquids ◽  
Reaction Time ◽  
Present Method ◽  
One Pot ◽  
Microwave Assisted ◽  
One Pot Synthesis ◽  
Dicationic Ionic Liquids ◽  
Conventional Methods

A greener one pot synthesis of novel ammonium based dicationic ionic liquids is carried out under microwave conditions. The present method provides a better yield and less reaction time compared to the conventional methods.

Convenient Synthesis of 2,4-Disubstituted Chromeno[4,3-b]Pyridine by Microwave Assisted One Pot Three Component Protocol

2020 ◽  
Vol 17 ◽  
Author(s):  
Ghanshyam Jadhav ◽  
Vijay Medhane ◽  
Dattatray Deshmukh
Keyword(s):  
Reaction Time ◽  
Microwave Irradiation ◽  
Aromatic Aldehydes ◽  
Pyridine Derivatives ◽  
Substituted Anilines ◽  
One Pot ◽  
Microwave Assisted ◽  
Synthetic Strategy ◽  
Convenient Synthesis ◽  
Scalable Synthesis

: We herein, describe efficient and scalable synthesis of 2,4-diaryl substituted chromene [43-b] pyridine derivatives using multicomponent reaction strategy by microwave irradiation of 4-amino 2-oxo-2H-chromene, aromatic aldehydes and substituted anilines. This synthetic strategy was found to be very useful as it follows environment benign protocol, also it gives good outcome in terms of yield and requires shorter reaction time.

ZnFe2O4 nanoparticles and a clay encapsulated ZnFe2O4 nanocomposite: synthesis strategy, structural characteristics and the adsorption of dye pollutants in water

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 56145-56156 ◽  
Author(s):  
Azadeh Tadjarodi ◽  
Mina Imani ◽  
Mohammad Salehi
Keyword(s):  
Solid State ◽  
Zinc Ferrite ◽  
Structural Characteristics ◽  
Ferrite Nanoparticles ◽  
Organic Dye ◽  
One Pot ◽  
Microwave Assisted ◽  
Dye Pollutants ◽  
Synthesis Strategy ◽  
Znfe2o4 Nanoparticles

Zinc ferrite nanoparticles were prepared by a one-pot microwave assisted combustion in the solid state and encapsulated in an organoclay to obtain a zinc ferrite/organoclay nanocomposite for the adsorption of organic dye pollutants from aqueous solutions.

scholarly journals 4-(Dimethylamino)pyridine as an Efficient Catalyst for One-Pot Synthesis of 1,4-Pyranonaphthoquinone Derivatives viaMicrowave-Assisted Sequential Three Component Reaction in Green Solvent

2021 ◽  
Vol 16 (11) ◽  
pp. 1934578X2110539
Author(s):  
Nguyen Ha Thanh ◽  
Hoang Thi Phuong ◽  
Le Nhat Thuy Giang ◽  
Nguyen Thi Quynh Giang ◽  
Nguyen Thi Thu Ha ◽  
...  
Keyword(s):  
Reaction Time ◽  
Green Solvent ◽  
One Pot ◽  
Efficient Catalyst ◽  
Environmental Friendliness ◽  
Short Reaction Time ◽  
Microwave Assisted ◽  
Synthetic Procedure ◽  
Three Component Reaction ◽  
Antimicrobial And Antifungal Activities

Novel 1,4-pyranonaphthoquinone derivatives were successfully synthesized via the microwave-assisted three-component reaction of 1,4-naphthoquinone, malononitrile, and various arylaldehydes in ethanol in the presence of 4-(dimethylamino)pyridine (DMAP) as a catalyst, and subsequently evaluated in terms of their antimicrobial and antifungal activities. This synthetic procedure has the notable advantages of environmental friendliness, short reaction time, good yield, and convenient operation.

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