Structure of nickel (II) chelates with o-alkoxyaniline derivatives of ?-dicarbonyl compounds

1970 ◽  
Vol 11 (3) ◽  
pp. 507-508
Author(s):  
V. P. Kurbatov ◽  
O. A. Osinov ◽  
K. N. Kovalenko ◽  
A. V. Kovaleva
Keyword(s):  
Dicarbonyl Compounds ◽  
Derivatives Of

scholarly journals A facile synthesis of phenazine and quinoxaline (new 1,4-benzo diazine) derivatives using magnesium sulfate heptahydrate as a catalyst

2011 ◽  
Vol 76 (9) ◽  
pp. 1191-1198 ◽  
Author(s):  
Bahador Karami ◽  
Saeed Khodabakhshi
Keyword(s):  
Catalytic Activity ◽  
Magnesium Sulfate ◽  
Room Temperature ◽  
Facile Synthesis ◽  
Dicarbonyl Compounds ◽  
Sulfate Heptahydrate ◽  
Quinoxaline Derivatives ◽  
Work Up ◽  
Derivatives Of

Convenient and simple procedures for the synthesis of phenazine and quinoxaline derivatives were developed via a reaction of ophenylenediamines and 1,2-dicarbonyl compounds. In addition, the synthesis of two new derivatives of 1,4-benzo diazine derivatives and the catalytic activity of magnesium sulfate heptahydrate (MgSO4?7H2O) in the room temperature condensation of o-phenylenediamines and 1,2- dicarbonyl compounds in ethanol as solvent are reported. This method has many appealing attributes, such as excellent yields, short reactions times, and simple work-up procedures.

Reaction of Grignard reagents with β-dicarbonyl compounds. II. Synthesis of β-hydroxyketones from 2,4-pentanedione

1967 ◽  
Vol 45 (15) ◽  
pp. 1761-1765 ◽  
Author(s):  
P. Canonne ◽  
L. C. Leitch
Keyword(s):  
Grignard Reagents ◽  
Magnesium Bromide ◽  
Dicarbonyl Compounds ◽  
Girard’S Reagent ◽  
Derivatives Of ◽  
By Products

Several new β-hydroxyketones having the formula CH3R′C(OH)CH2COCH3 have been prepared by the action of Grignard reagents on 2,4-pentanedione. With benzyl-, o-xylyl-, p-xylyl-, 3,4-dimethylbenzyl-, 2,5-dimethylbenzyl-, 3,5-dimethylbenzyl-, and α-naphthylmethyl-magnesium chlorides, 60 to 75% yields of the β-hydroxyketones were obtained. Phenyl-, p-tolyl-, and p-trifluoromethylphenyl-magnesium bromide and 2,4-dimethylbenzylmagnesium chloride gave lower yields, whereas with α-naphthylmagnesium bromide no β-hydroxyketone was formed. The β-hydroxyketones were separated from non-ketonic by-products by means of Girard's reagent T or P. Solid derivatives of the β-hydroxyketones could not be prepared.

Anilinomethylidene Derivatives of Cyclic 1,3-Dicarbonyl Compounds in the Synthesis of New Sulfur-Containing Pyridines and Quinolines.

ChemInform ◽  
2003 ◽  
Vol 34 (12) ◽  
Author(s):  
V. V. Dotsenko ◽  
S. G. Krivokolysko ◽  
A. N. Chernega ◽  
V. P. Litvinov
Keyword(s):  
Dicarbonyl Compounds ◽  
Derivatives Of ◽  
Sulfur Containing
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