Preparation and Characterization of New GA Carboxylic Acid Derivatives

2013 ◽  
pp. 1517-1522
Author(s):  
Caiju Zhou ◽  
Yong-En Guo ◽  
Laitao Zhang ◽  
Baoguo Wang ◽  
Longjiang Chen ◽  
...  
Keyword(s):  
Carboxylic Acid

scholarly journals Synthesis and Characterization of the Germathioacid Chloride Coordinated by an N-Heterocyclic Carbene §

Inorganics ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 76 ◽  
Author(s):  
Yasunobu Egawa ◽  
Chihiro Fukumoto ◽  
Koichiro Mikami ◽  
Nobuhiro Takeda ◽  
Masafumi Unno
Keyword(s):  
Carboxylic Acid ◽  
Density Functional ◽  
Dft Calculation ◽  
Acid Chlorides ◽  
Carboxylic Acid Chloride ◽  
Functional Theory ◽  
Nitrogen Ligands ◽  
Bond Property ◽  
Nitrogen Bonds

Carboxylic acid chlorides are useful substrates in organic chemistry. Many germanium analogues of carboxylic acid chloride have been synthesized so far. Nevertheless, all of the reported germathioacid chlorides use bidentate nitrogen ligands and contain germanium-nitrogen bonds. Our group synthesized germathioacid chloride, Ge(S)Cl{C6H3-2,6-Tip2}(Im-i-Pr2Me2), using N-heterocyclic carbene (Im-i-Pr2Me2). As a result of density functional theory (DFT) calculation, it was found that electrons are localized on sulfur, and the germanium-sulfur bond is a single bond with a slight double bond property.

Biosynthesis of quinoxaline antibiotics: purification and characterization of the quinoxaline-2-carboxylic acid activating enzyme from Streptomyces triostinicus

Biochemistry ◽  
1990 ◽  
Vol 29 (14) ◽  
pp. 3522-3527 ◽  
Author(s):  
Konrad Glund ◽  
Wilhelm Schlumbohm ◽  
Mrinal Bapat ◽  
Ullrich Keller
Keyword(s):  
Carboxylic Acid ◽  
Purification And Characterization

Gene Identification and Characterization of 5-Formyl-3-Hydroxy-2-Methylpyridine 4-Carboxylic Acid 5-Dehydrogenase, an NAD+-Dependent Dismutase

2009 ◽  
Vol 145 (4) ◽  
pp. 493-503 ◽  
Author(s):  
N. Yokochi ◽  
Y. Yoshikane ◽  
S. Matsumoto ◽  
M. Fujisawa ◽  
K. Ohnishi ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Gene Identification ◽  
Identification And Characterization

Synthesis and Characterization of 3-Phenyl-adamantane-1-carboxylic Acid

2019 ◽  
Vol 35 (4) ◽  
pp. 556-559
Author(s):  
Wei Feng ◽  
Kaiqi Ye ◽  
Yang Jiang ◽  
Ruibin Hou
Keyword(s):  
Carboxylic Acid ◽  
Synthesis And Characterization

scholarly journals Synthesis and Characterization of New Multifunctional Self-Boosted Filters for UV Protection: ZnO Complex with Dihydroxyphenyl Benzimidazole Carboxylic Acid

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4546
Author(s):  
Mattia Battistin ◽  
Elisa Durini ◽  
Valeria Dissette ◽  
Alessandro Bonetto ◽  
Antonio Marcomini ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Skin Cancer ◽  
Sun Exposure ◽  
Skin Cancer Prevention ◽  
Protection Factor ◽  
Full Characterization ◽  
New Class ◽  
Chemical Combination ◽  
Direct Functionalization

The incidence of skin cancer is increasing both because of climate change and the increase in pollution than people’s incorrect habits of sun exposure. In these regards, sunscreen and photoprotection are essential tools in consenting the benefits induced by safe solar light exposition and skin cancer prevention. In this work, a new class of sunscreen filter was synthesized by chemical combination of a physical filter (ZnO) and Oxisol (dihydroxyphenyl benzimidazole carboxylic acid), an antioxidant molecule with booster effect. In this work, a new class of filters with new properties was achieved by direct functionalization of particles surface. A full characterization of this multifunctional ingredient (ZnO–Ox) was conducted: Compared with the simple mixture, the new filter acts as a multifunctional molecule showing a higher Sun Protection Factor (SPF), a better cytotoxic profile (MTT and NRU assay), and anti-acne activity. A strong reduction of photocatalytic activity of ZnO was observed, also improving the safety profile.

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