Zinc Enolate/Sulfinate Prepared from a Single-Run Reaction Using Zinc Dust withO-Tosylated 4-Hydroxy Coumarin and Pyrone

2016 ◽  
Vol 37 (7) ◽  
pp. 1144-1147 ◽  
Author(s):  
Ueon Sang Shin ◽  
Seong-Ryu Joo ◽  
Seung-Hoi Kim
Keyword(s):  
Zinc Dust ◽  
Hydroxy Coumarin ◽  
Zinc Enolate

scholarly journals Synthesis and Study of the fluorescent properties of 4-hydroxy-coumarin derivatives

2021 ◽  
Vol 1795 (1) ◽  
pp. 012001
Author(s):  
Yasameen K. Al-Majedy ◽  
Hiba H. Ibraheem ◽  
Shemaa Shamel ◽  
Ahmed A. Al-Amiery
Keyword(s):  
Coumarin Derivatives ◽  
Fluorescent Properties ◽  
Hydroxy Coumarin

III.—On the Reduction of Ferric Iron (1) by Sulphurous Acid and (2) by Zinc Dust

1913 ◽  
Vol 32 ◽  
pp. 12-16
Author(s):  
Alexander Charles Cumming ◽  
E. W. Hamilton Smith
Keyword(s):  
Sulphuric Acid ◽  
Carbonate Rocks ◽  
Ferric Iron ◽  
Zinc Dust ◽  
The Other ◽  
Additional Contribution ◽  
Large Excess ◽  
Other Hand

So many papers have appeared on this subject that some apology seems desirable before making an additional contribution. The amount of published work on reduction with sulphurous acid is in itself an indication that many workers have found difficulties. It has been shown that the reduction does not take place in presence of large excess of hydrochloric or sulphuric acid, but the reduction will still occur while the reaction of the solution is strongly acid. On the other hand, Hillebrand (“Analysis of Silicate and Carbonate Rocks,” U.S. Bulletin, 442, p. 113) states if the solution after addition of sulphite is red in colour, it is too alkaline and acid must be added.

scholarly journals Hydrogenative Cleavage of Azo Compounds Catalyzed by Commercial Zinc Dust Using Ammonium Acetate.

ChemInform ◽  
2004 ◽  
Vol 35 (18) ◽  
Author(s):  
G. R. Srinivasa ◽  
K. Abiraj ◽  
D. Channe Gowda
Keyword(s):  
Ammonium Acetate ◽  
Zinc Dust ◽  
Azo Compounds

Synthesis of 3-amino-4-hydroxy coumarin and dihydroxy-phenyl coumarins as novel anticoagulants

2011 ◽  
Vol 60 (10) ◽  
pp. 617-620 ◽  
Author(s):  
Ozkan Danis ◽  
Basak Yuce-Dursun ◽  
Cihan Gunduz ◽  
Ayse Ogan ◽  
Goksel Sener ◽  
...  
Keyword(s):  
Novel Anticoagulants ◽  
Hydroxy Coumarin

scholarly journals Protective Effects of 3-benzoyl-7-hydroxy Coumarin on Liver of Adult Rat Exposed to Aluminium Chloride

2021 ◽  
Vol 68 (1) ◽  
pp. 222-228
Author(s):  
Ahmet Özkaya ◽  
Kenan Türkan
Keyword(s):  
Oxidative Stress ◽  
Enzyme Activity ◽  
Aluminium Chloride ◽  
Control Group ◽  
Albino Rats ◽  
Activity Levels ◽  
Protective Effects ◽  
Adult Rat ◽  
Antioxidant Enzyme System ◽  
Hydroxy Coumarin

In this study, the effects of 3-benzoyl-7-hydroxy coumarin molecule on mineral and antioxidant enzymes were investigated in rat liver exposed to oxidative stress with aluminium chloride (AlCl3). Adult male Wistar albino rats were divided into four groups as Control, Coumarin, AlCl3, and Coumarin + AlCl3. Coumarin at the dose of 10 mg/kg and AlCl3 at the dose of 8.3 mg/kg were administered for 30 days every other day. In AlCl3 group, malondialdehyde (MDA), iron (Fe), aluminium (Al) and copper (Cu) levels increased compared to the control group, while glutathione (GSH) level, glutathione S-transferase (GST), and carboxylesterase (Ces) enzyme activity levels decreased. In Coumarin + AlCl3 group, MDA, Fe, Al and Cu levels decreased with the effect of coumarin compared to AlCl3 group, while GSH level, and GST enzyme activity levels increased. According to our results, AlCl3 generates oxidative stress in rat livers, and we believe that 3-benzoyl-7-hydroxy coumarin has an ameliorative effect on antioxidant enzyme system, Al, Fe and Cu levels.

Sign in / Sign up

Export Citation Format

Share Document