Catalytic metallodendrimers grafted on mesoporous polymethacrylate beads for the regioselective synthesis of β-amino alcohols under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42526-42535 ◽  
Author(s):  
Richa Tiwari ◽  
Sachdeo H. Daware ◽  
Sandeep B. Kale
Keyword(s):  
Ambient Temperature ◽  
Amino Alcohols ◽  
Catalytic Synthesis ◽  
Solvent Free ◽  
Regioselective Synthesis ◽  
Solvent Free Conditions

Metallodendrimer-grafted mesoporous polymethyacrylate beads for the regioselective, solvent-free, efficient and scalable catalytic synthesis of β-amino alcohols at ambient temperature.

scholarly journals Microwave-Enhanced Sulphated Zirconia and SZ/MCM-41 Catalyzed Regioselective Synthesis of β-Amino Alcohols Under Solvent-Free Conditions

Molecules ◽  
2008 ◽  
Vol 13 (4) ◽  
pp. 977-985 ◽  
Author(s):  
Guillermo Negrón-Silva ◽  
C. Hernández-Reyes ◽  
Deyanira Angeles-Beltrán ◽  
Leticia Lomas-Romero ◽  
Eduardo González-Zamora
Keyword(s):  
Amino Alcohols ◽  
Solvent Free ◽  
Regioselective Synthesis ◽  
Sulphated Zirconia ◽  
Solvent Free Conditions ◽  
Mcm 41

Highly efficient regioselective synthesis of pyrroles via a tandem enamine formation–Michael addition–cyclization sequence under catalyst- and solvent-free conditions

2015 ◽  
Vol 17 (6) ◽  
pp. 3415-3423 ◽  
Author(s):  
Thavaraj Vivekanand ◽  
Perumal Vinoth ◽  
B. Agieshkumar ◽  
Natarajan Sampath ◽  
Arumugam Sudalai ◽  
...  
Keyword(s):  
Column Chromatography ◽  
Michael Addition ◽  
Solvent Free ◽  
Regioselective Synthesis ◽  
Highly Efficient ◽  
Solvent Free Conditions ◽  
Enamine Formation

An efficient three-component, catalyst-, solvent-, and column chromatography-free procedure was developed for the synthesis of 3-(1H-pyrrol-3-yl)indolin-2-ones.

scholarly journals EFFICIENT AND GREEN CATALYTIC SYNTHESIS OF DIHYDROPYRIMIDINONE (THIONE) DERIVATIVES USING COBALT NITRATE IN SOLVENT-FREE CONDITIONS

2014 ◽  
Vol 59 (1) ◽  
pp. 2311-2314 ◽  
Author(s):  
MASOUD NASR-ESFAHANI ◽  
MORTEZA MONTAZEROZOHORI ◽  
MARYAM AGHEL-MIRREZAEE ◽  
HASSAN KASHI
Keyword(s):  
Cobalt Nitrate ◽  
Catalytic Synthesis ◽  
Solvent Free ◽  
Solvent Free Conditions

scholarly journals M-Type SrFe12O19 Ferrite: An Efficient Catalyst for the Synthesis of Amino Alcohols under Solvent-Free Conditions

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Mouhsine Laayati ◽  
Ali Hasnaoui ◽  
Nayad Abdallah ◽  
Saadia Oubaassine ◽  
Lahcen Fkhar ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Amino Alcohols ◽  
Solvent Free ◽  
Strontium Hexaferrite ◽  
Epoxide Ring ◽  
Magnetic Nanocatalyst ◽  
Sem Images ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
Bet Analysis

Magnetically separable strontium hexaferrite SrFe12O19 was prepared using the chemical coprecipitation method, and the nanostructured material was characterized by X-ray diffraction, scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), and BET analysis. The SEM images showed the homogeneity of the chemical composition of SrFe12O19 and uniform distribution of size and morphology. The pore size of the nanomaterial and its specific area were determined by BET measurements. Strontium hexaferrite SrFe12O19 exhibited a strong magnetic field, which is highly suitable in the heterogeneous catalysis as it can be efficiently separated from the reaction. The magnetic nanocatalyst showed high activity and environmentally benign heterogeneous catalysts for the epoxide ring-opening with amines affording β-amino alcohols under solvent-free conditions. When unsymmetrical epoxides were treated in the presence of aromatics amines, the regioselectivity was influenced by the electronic and steric factors. Total regioselectivity was observed for the reactions performed with aliphatic amines. The magnetically SrFe12O19 nanocatalyst showed excellent recyclability with continuously good catalytic activities after four cycles.

Synthesis of 1H-Chromeno[2,3-d]Pyrimidine-5-Carboxamides under Solvent-Free Conditions at Ambient Temperature

2017 ◽  
Vol 41 (2) ◽  
pp. 85-87 ◽  
Author(s):  
Ghodsyeh Keykha ◽  
Mohammad R. Hosseini-Tabatabaei ◽  
Alireza Hassanabadi
Keyword(s):  
Ambient Temperature ◽  
Present Method ◽  
Barbituric Acid ◽  
Condensation Product ◽  
Solvent Free ◽  
One Pot ◽  
Short Reaction Time ◽  
Alkyl Isocyanide ◽  
Solvent Free Conditions ◽  
Work Up

Good yields of six 1H-chromeno[2,3-d]pyrimidine-5-carboxamides were obtained via the two-stage, one-pot reaction of an alkyl isocyanide with the initially formed condensation product of 1,3-dimethyl barbituric acid and a salicylaldehyde under solvent-free conditions at ambient temperature. This procedure has a number of advantages, such as short reaction time and easy work-up. Also, the present method does not involve any hazardous organic solvent.

Synthesis of β-amino alcohols using MgO as a new catalyst under solvent-free conditions

2008 ◽  
Vol 86 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Mona Hosseini-Sarvari
Keyword(s):  
Ring Opening ◽  
Amino Alcohols ◽  
Solvent Free ◽  
Aliphatic Amines ◽  
Solvent Free Conditions ◽  
Ring Opening Of Epoxides ◽  
High Yields ◽  
Aromatic And Aliphatic Amines

MgO catalyzed efficiently the ring opening of epoxides with a range of aromatic and aliphatic amines to produce β-substituted alcohols in high yields under solvent-free conditions. Exclusive trans stereoselectivity is observed for cyclic epoxide.Key words: MgO, β-amino alcohols, solvent-free, epoxide, amine.

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