ChemInform Abstract: Facile and Efficient Method for the Synthesis of 14-Substituted-14-H-dibenzo[a,j]xanthenes Catalyzed by Ruthenium Chloride Hydrate as a Homogeneous Catalyst.

ChemInform ◽  
2011 ◽  
Vol 42 (44) ◽  
pp. no-no
Author(s):  
Khalil Tabatabaeian ◽  
Alireza Khorshidi ◽  
Manouchehr Mamaghani ◽  
Ali Dadashi
Keyword(s):  
Efficient Method ◽  
Homogeneous Catalyst ◽  
Ruthenium Chloride ◽  
Chloride Hydrate

One-pot synthesis of tetrahydrobenzo[a]xanthen-11-one derivatives catalyzed by ruthenium chloride hydrate as a homogeneous catalyst

2011 ◽  
Vol 89 (6) ◽  
pp. 623-627 ◽  
Author(s):  
Khalil Tabatabaeian ◽  
Alireza Khorshidi ◽  
Manouchehr Mamaghani ◽  
Ali Dadashi ◽  
Milad Khoshnood Jalali
Keyword(s):  
Homogeneous Catalyst ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Ruthenium Chloride ◽  
Chloride Hydrate

Three-component cyclocondensation of β-naphthol, aldehydes, and 5,5-dimethylcyclohexane-1,3-dione (dimedone) was catalyzed efficiently by ruthenium chloride hydrate under mild reaction conditions to afford 12-aryl or alkyl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives in good to excellent yields.

ChemInform Abstract: One-Pot Synthesis of Tetrahydrobenzo[a]xanthen-11-one Derivatives Catalyzed by Ruthenium Chloride Hydrate as a Homogeneous Catalyst.

ChemInform ◽  
2011 ◽  
Vol 42 (50) ◽  
pp. no-no
Author(s):  
Khalil Tabatabaeian ◽  
Alireza Khorshidi ◽  
Manouchehr Mamaghani ◽  
Ali Dadashi ◽  
Milad Khoshnood Jalali
Keyword(s):  
Homogeneous Catalyst ◽  
One Pot ◽  
One Pot Synthesis ◽  
Ruthenium Chloride ◽  
Chloride Hydrate

scholarly journals Synthesis of biscoumarin derivatives by the reaction of aldehydes and 4-hydroxycoumarin using ruthenium (III) chloride hydrate as a versatile homogeneous catalyst

2012 ◽  
Vol 77 (4) ◽  
pp. 407-413 ◽  
Author(s):  
Khalil Tabatabaeian ◽  
Hannaneh Heidari ◽  
Alireza Khorshidi ◽  
Manouchehr Mamaghani ◽  
Nosrat Mahmoodi
Keyword(s):  
Michael Reaction ◽  
Aqueous Media ◽  
Environmentally Benign ◽  
Homogeneous Catalyst ◽  
Reaction Conditions ◽  
One Pot ◽  
The One ◽  
High Yields ◽  
Chloride Hydrate ◽  
Short Times

The one-pot domino Knoevenagel-type condensation/Michael reaction of aromatic, heteroaromatic and aliphatic aldehydes with 4-hydroxycoumarin in aqueous media in the presence of ruthenium salt as homogeneous catalyst was investigated. It was found that 5 mol% of RuCl3.nH2O catalyzes biscoumarin synthesis in high yields (70-95%) under optimised, mild, green and environmentally benign reaction conditions in short times (25-35min).

scholarly journals Facile Access to Aldol Products from Aromatic and Heteroaromatic Aldehydes Using Ruthenium Catalyst

2010 ◽  
Vol 2010 ◽  
pp. 1-4
Author(s):  
Khalil Tabatabaeian ◽  
Manouchehr Mamaghani ◽  
Nosrat O. Mahmoodi ◽  
Elahe Keshavarz
Keyword(s):  
Room Temperature ◽  
Ruthenium Catalyst ◽  
New Method ◽  
Ruthenium Chloride ◽  
Short Time ◽  
Chloride Hydrate

A new method for the synthesis of aldol products is described. The reaction of aromatic and heteroaromatic aldehydes with 1-(thiophen-2-yl)ethanone in the presence of ruthenium chloride hydrate combined with ligand provided the related aldol adducts, in a short time at room temperature in good yields (77–84%).

An efficient synthesis of 2-arylbenzothiazoles using silica sulfuric acid, oxalic acid and aluminum chloride hydrate as heterogeneous and homogeneous catalyst systems

2010 ◽  
Vol 76 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Behrooz Maleki
Keyword(s):  
Sulfuric Acid ◽  
Oxalic Acid ◽  
Aluminum Chloride ◽  
Convenient Method ◽  
Homogeneous Catalyst ◽  
Efficient Synthesis ◽  
Silica Sulfuric Acid ◽  
Mild Conditions ◽  
Catalyst Systems ◽  
Chloride Hydrate

A convenient method for the synthesis of 2-arylbenzothiazoles from condensation of aromatic/heteroaromatic aldehydes with 2-aminothiophenol has been developed using inexpensive, green and reusable solid acids – silica sulfuric acid (SSA), oxalic acid or AlCl3·6H2O as efficient catalysts. The reactions occurred under mild conditions to afford the corresponding 2-arylbenzothiazoles in good to excellent yields.

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