Synthetic resins: I. Preparation and characterization of resins from substituted benzoic acid–formaldehyde

1985 ◽  
Vol 30 (12) ◽  
pp. 4619-4629 ◽  
Author(s):  
Anil P. Das ◽  
Subasini Lenka ◽  
Padma L. Nayak
Keyword(s):  
Benzoic Acid ◽  
Synthetic Resins

TEM characterization of proton-exchanged LiNbO3 optical waveguides

1986 ◽  
Vol 44 ◽  
pp. 480-481
Author(s):  
W. E. Lee
Keyword(s):  
Refractive Index ◽  
Benzoic Acid ◽  
Optical Waveguides ◽  
Total Internal Reflection ◽  
Index Of Refraction ◽  
Optical Measurements ◽  
Lithium Ions ◽  
Wide Channel ◽  
Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

Synthesis and characterization of nano-scale terbium-benzoic acid luminescent complex

2007 ◽  
Author(s):  
Zhenfeng Cui ◽  
Huijuan Ren ◽  
Fenghua Chen ◽  
Guixia Liu ◽  
Guangyan Hong
Keyword(s):  
Benzoic Acid ◽  
Synthesis And Characterization ◽  
Nano Scale

scholarly journals Synthesis and Characterization of some New 1,3,4-Oxadiazole derivatives based on 4-amino benzoic acid

2016 ◽  
Vol 13 (4) ◽  
pp. 762-769
Author(s):  
Baghdad Science Journal
Keyword(s):  
Schiff Base ◽  
Benzoic Acid ◽  
Spectral Data ◽  
1H Nmr ◽  
Synthesis And Characterization ◽  
Oxadiazole Derivatives ◽  
Ft Ir ◽  
Amino Benzoic Acid

Various of 2,5- disubstituted 1,3,4-oxadiazole (Schiff base, ?- lactam and azo) were synthesized from 2,5-di (4,4?-amino-1,3,4-oxadiazole which usequently synth-esized from mixture of 4- amino benzoic acid and hydrazine arch of polyphosphorus acid. The synthesized compounds were cherecterized by using some spectral data (UV, FT-IR , and 1H-NMR)

scholarly journals Identification and characterization of a phenyl-thiazolyl-benzoic acid derivative as a novel RAR/RXR agonist

Heliyon ◽  
2019 ◽  
Vol 5 (11) ◽  
pp. e02849
Author(s):  
Chie Koshiishi ◽  
Takanori Kanazawa ◽  
Eric Vangrevelinghe ◽  
Toshiyuki Honda ◽  
Shinji Hatakeyama
Keyword(s):  
Benzoic Acid ◽  
Acid Derivative ◽  
Benzoic Acid Derivative ◽  
Identification And Characterization

scholarly journals Characterization of Benzoyl Coenzyme A Biosynthesis Genes in the Enterocin-Producing Bacterium “Streptomyces maritimus”

2003 ◽  
Vol 185 (2) ◽  
pp. 399-404 ◽  
Author(s):  
Longkuan Xiang ◽  
Bradley S. Moore
Keyword(s):  
Benzoic Acid ◽  
Phenylalanine Ammonia Lyase ◽  
Coenzyme A ◽  
Primary Metabolism ◽  
The Novel ◽  
Wild Type ◽  
Coa Ligase ◽  
Encoding Gene ◽  
Coenzyme A Biosynthesis

ABSTRACT The novel benzoyl coenzyme A (benzoyl-CoA) biosynthesis pathway in “Streptomyces maritimus” was investigated through a series of target-directed mutations. Genes involved in benzoyl-CoA formation were disrupted through single-crossover homologous recombination, and the resulting mutants were analyzed for their ability to biosynthesize the benzoyl-CoA-primed polyketide antibiotic enterocin. Inactivation of the unique phenylalanine ammonia-lyase-encoding gene encP was previously shown to be absolutely required for benzoyl-CoA formation in “S. maritimus”. The fatty acid β-oxidation-related genes encH, -I, and -J, on the other hand, are necessary but not required. In each case, the yield of benzoyl-CoA-primed enterocin dropped below wild-type levels. We attribute the reduced benzoyl-CoA formation in these specific mutants to functional substitution and cross-talk between the products of genes encH, -I, and -J and the enzyme homologues of primary metabolism. Disruption of the benzoate-CoA ligase encN gene did not perturb enterocin production, however, demonstrating that encN is extraneous and that benzoic acid is not a pathway intermediate. EncN rather serves as a substitute pathway for utilizing exogenous benzoic acid. These experiments provide further support that benzoyl-CoA is formed in a novel bacterial pathway that resembles the eukaryotic assembly of benzoyl-CoA from phenylalanine via a β-oxidative path.

scholarly journals Isolation and characterization of a new bacterium carboxylating phenol to benzoic acid under anaerobic conditions.

1996 ◽  
Vol 178 (9) ◽  
pp. 2551-2558 ◽  
Author(s):  
T Li ◽  
J G Bisaillon ◽  
R Villemur ◽  
L Létourneau ◽  
K Bernard ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Anaerobic Conditions ◽  
Isolation And Characterization
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