One-pot synthesis of 5-[1-substituted 4-acetyl-5-methyl-1H-pyrrol-2-yl)]-8-hydroxyquinolines using DABCO as green catalyst

2015 ◽  
Vol 21 (4) ◽  
pp. 207-210 ◽  
Author(s):  
Shawkat Ahmed Abdelmohsen ◽  
Yasser Abou-bakr El-Ossaily
Keyword(s):  
Reaction Time ◽  
Environmentally Friendly ◽  
Catalytic Amount ◽  
One Pot ◽  
Simple Method ◽  
Green Catalyst ◽  
Short Reaction Time ◽  
H Nmr ◽  
One Pot Synthesis ◽  
Substituted Pyrroles

AbstractA green and simple method for the synthesis of the title compounds 4 by the reaction of 5-chloroacetyl-8-hydroxyquinoline (1), pentane-2,4-dione (2), and amines 3 in the presence of a catalytic amount of 1,4-diazabicyclo[2.2.2]octane at 60°C is described. The procedure is amenable for the synthesis of other substituted pyrroles. Short reaction time, environmentally friendly procedure, and excellent yields are the main advantages. The structures of products 4a–n were characterized by 1H NMR, IR, and MS spectra.

Efficient One-Pot Synthesis of 12-Aryl-8,9,10,12-Tetrahydrobenzo[a]Xanthen-11-one Derivatives Using NaHSO4 as Catalyst in Ionic Liquid

2010 ◽  
Vol 113-116 ◽  
pp. 1993-1996 ◽  
Author(s):  
Hong Jun Zang ◽  
Yong Zhang ◽  
Bo Wen Cheng
Keyword(s):  
Ionic Liquid ◽  
Reaction Time ◽  
Environmentally Friendly ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
Short Reaction Time ◽  
One Pot Synthesis ◽  
Three Component Coupling

A series of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives were synthesized via the three-component coupling from aromatic aldehydes, 2-naphthol and 5,5–dimethylcyclohexane -1,3-dione catalyzed by NaHSO4 in ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4). The reaction proceeded with good yields under short reaction time. The NaHSO4 was not expensive and the ionic liquid could be reused. The proposed method is efficient and environmentally friendly.

scholarly journals Highly efficient, one-pot synthesis of novel bis-spirooxindoles with skeletal diversity via sequential multi-component reaction in PEG-400 as a biodegradable solvent

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39502-39511 ◽  
Author(s):  
Ensieh Safari ◽  
Ammar Maryamabadi ◽  
Alireza Hasaninejad
Keyword(s):  
Reaction Time ◽  
One Pot ◽  
Short Reaction Time ◽  
Peg 400 ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
Skeletal Diversity

A green, efficient, multi-component protocol has been developed for synthesis of novel bis-spirooxindoles in short reaction time, easy workup and excellent yields.

One-Pot Synthesis of P1,P2-Diaciclovir-5'-Diphosphate from Aciclovir 5'-H-Phosphonate

2013 ◽  
Vol 830 ◽  
pp. 222-225
Author(s):  
Hai Xin Ding ◽  
Si Liu ◽  
Shan Shan Gong ◽  
Qi Sun
Keyword(s):  
Reaction Time ◽  
Starting Material ◽  
One Pot ◽  
Short Reaction Time ◽  
One Pot Synthesis

P1,P2-Diaciclovir-5'-diphosphate has been synthesized efficiently from aciclovir 5'-H-phosphonate monoester via a one-pot reaction. This method features easily accessibleH-phosphonate starting material, short reaction time, and good isolated yield.

scholarly journals Pentafluoropropionic Acid: An Efficient and Metal-Free Catalyst for the One-Pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Naser Montazeri ◽  
Taghva Noghani ◽  
Mona Ghorchibeigy ◽  
Rozita Zoghi
Keyword(s):  
Reaction Time ◽  
Aromatic Aldehyde ◽  
One Pot ◽  
Short Reaction Time ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Three Component Reaction ◽  
The One ◽  
High Yields

Pentafluoropropionic acid (PFPA) efficiently catalyzes the one-pot, three-component reaction of aromatic aldehyde, malononitrile, and dimedone to yield tetrahydrobenzo[b]pyran derivatives in high yields. This method is of great value because of its easy processing, short reaction time, environmentally, and high yields.

scholarly journals An Efficient One-Pot Synthesis of 1, 5-Benzodiazepine Derivatives Catalyzed by TBAB under Mild Conditions

2012 ◽  
Vol 9 (1) ◽  
pp. 407-414 ◽  
Author(s):  
Mohammad A. Baseer ◽  
Asgar Jafar Khan
Keyword(s):  
Reaction Time ◽  
Solvent Free ◽  
Ammonium Bromide ◽  
One Pot ◽  
Short Reaction Time ◽  
Mild Conditions ◽  
Excellent Yield ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Benzodiazepine Derivatives

2,3-Dihydro-1H-1,5-benzodiazepines were synthesized by reaction ofo-phenylenediamine with ketones (acyclic / cyclic) under solvent free conditions in the presence of tetra butyl ammonium bromide (TBAB) in short reaction time with excellent yield.

Phosphomolybdic Acid (PMA)-catalyzed One-pot Synthesis of 2,3- Dihydroquinazolines

2019 ◽  
Vol 16 (8) ◽  
pp. 683-687
Author(s):  
Chuanhuan Chen ◽  
A. Xuejiao ◽  
Xia Li ◽  
Guoli Huang ◽  
Bo Liu
Keyword(s):  
Reaction Time ◽  
Present Method ◽  
Room Temperature ◽  
Phosphomolybdic Acid ◽  
New Method ◽  
High Yield ◽  
One Pot ◽  
Short Reaction Time ◽  
One Pot Synthesis

We have developed a new method for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones in good to excellent yields via phosphomolybdic acid (PMA)-catalyzed cyclocondensation of 2- aminobenzamides with aldehydes or ketones in N,N-dimethylformamide (DMF) at room temperature. The present method proves to be efficient in terms of short reaction time, high yield, simple workup and easy purification.

One-pot synthesis of hydrazono-sulfonamide adducts using Cu(BTC) MOF catalyst and their remarkable AIEE properties: unprecedented copper(ii)-catalyzed generation of ketenimine

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20003-20010 ◽  
Author(s):  
Vaithiyanathan Mahendran ◽  
Sivakumar Shanmugam
Keyword(s):  
Reaction Time ◽  
Catalyst Loading ◽  
One Pot ◽  
Short Reaction Time ◽  
Simple Operation ◽  
One Pot Synthesis

One pot & simple operation; short reaction time; no column purification; very less catalyst loading; scalable.

Iodine catalyzed one-pot synthesis of highly substituted N-methyl pyrroles via [3 + 2] annulation and their in vitro evaluation as antibacterial agents

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64781-64789 ◽  
Author(s):  
Biguvu Balachandra ◽  
Sivakumar Shanmugam ◽  
Thillaichidambaram Muneeswaran ◽  
Muthiah Ramakritinan
Keyword(s):  
Efficient Method ◽  
Antibacterial Agents ◽  
Environmentally Friendly ◽  
One Pot ◽  
In Vitro Evaluation ◽  
New Class ◽  
One Pot Synthesis ◽  
Substituted Pyrroles

A new class of highly substituted pyrroles have been synthesized via a simple, fast, and efficient method using environmentally friendly iodine catalyzed [3 + 2] annulation.

scholarly journals An efficient green synthesis of novel 1H-imidazo[1,2-a]imidazole-3-amine and imidazo[2,1-c][1,2,4]triazole-5-amine derivatives via Strecker reaction under controlled microwave heating

2019 ◽  
Vol 8 (1) ◽  
pp. 297-301 ◽  
Author(s):  
Kamal Usef Sadek ◽  
Afaf Mohamed Abdel-Hameed ◽  
Hisham A. Abdelnabi ◽  
Yasser Meleigy
Keyword(s):  
Reaction Time ◽  
Green Synthesis ◽  
Microwave Heating ◽  
Environmentally Friendly ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
Short Reaction Time ◽  
Strecker Reaction ◽  
Benzoyl Cyanide ◽  
High Yields

Abstract A highly efficient multi-component one-pot synthesis of novel 1H-imidazo[1,2-a]imidazole-3-amine and imidazo[2,1-c][1,2,4]triazole-5-amine derivatives has been developed through the reaction of easily available aromatic aldehydes, benzoyl cyanide and either 2-aminoimidazole-4,5-dicarbonitrile or 3-amino-1,2,4-triazole in pyridine under controlled microwave heating. The process is environmentally friendly, is operationally simple, with short reaction time and with high yields.

scholarly journals One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones Catalyzed by Chlorosulfonic Acid

2005 ◽  
Vol 2 (4) ◽  
pp. 228-230 ◽  
Author(s):  
Jin Tong-Shou ◽  
Zhao Ying ◽  
Liu Li-Bin ◽  
Li Tong-Shuang
Keyword(s):  
Reaction Time ◽  
Biginelli Reaction ◽  
Chlorosulfonic Acid ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
One Pot ◽  
Short Reaction Time ◽  
One Pot Synthesis

An efficient synthesis of 3,4-dihydropyrimidin-2-ones (DHPMs) from the aldehydes, β-ketoesters and urea in ethanol using chlorosulfonic acid as the catalyst is described. Compared with the classical Biginelli reaction conditions, this method has the advantage of excellent yields and short reaction time.

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