Reactive Extraction of Benzoic Acid and Pyridine-3-Carboxylic Acid Using Organophosphoric and Aminic Extractant Dissolved in Binary Diluent Mixtures

2011 ◽  
Vol 56 (8) ◽  
pp. 3367-3375 ◽  
Author(s):  
Dipaloy Datta ◽  
Sushil Kumar ◽  
Kailas L. Wasewar
Keyword(s):  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Reactive Extraction

scholarly journals Some Decomposition Routes in the Mass Spectra of Aromatic Carboxylic Acids

1965 ◽  
Vol 20 (7) ◽  
pp. 883-887 ◽  
Author(s):  
J. H. Beynon ◽  
B. E. Job ◽  
A. E. Williams
Keyword(s):  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Terephthalic Acid ◽  
Phthalic Acid ◽  
Mass Spectra ◽  
Deuterium Atom ◽  
Acid Group ◽  
Isophthalic Acid ◽  
Carboxylic Acid Group ◽  
Hydrogen Atoms

The mass spectra of benzoic acid, phthalic acid, isophthalic acid and terephthalic acid, together with the analogues deuterated on the carboxylic acid group have been studied. Exchange of the deuterium atom with hydrogen atoms on the positions ortho to a carboxylic acid group on the aromatic ring has been studied using meta-stable peaks.

A local proton source from carboxylic acid functionalized metal porphyrins for enhanced electrocatalytic CO2 reduction

2020 ◽  
Vol 44 (37) ◽  
pp. 16062-16068
Author(s):  
Yiwei Zhou ◽  
Yunheng Xiao ◽  
Jian Zhao
Keyword(s):  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Co2 Reduction ◽  
Proton Donor ◽  
Propanoic Acid ◽  
Metal Porphyrins ◽  
Proton Source

Metal tetraphenylporphyrin modified through the introduction of propanoic acid into the phenyl groups as a local proton donor exhibits higher CO2 electrocatalytic conversion to CO than benzoic acid.

scholarly journals Crystal structure of (E)-4-{2-[4-(allyloxy)phenyl]diazenyl}benzoic acid

2014 ◽  
Vol 70 (12) ◽  
pp. 499-502
Author(s):  
Md. Lutfor Rahman ◽  
Mashitah Mohd. Yusoff ◽  
Jamil Ismail ◽  
Huey Chong Kwong ◽  
Ching Kheng Quah
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Benzoic Acid ◽  
Title Compound ◽  
Acid Group ◽  
Dihedral Angles ◽  
Carboxylic Acid Group ◽  
Compound C ◽  
Benzene Rings

The title compound, C16H14N2O3, has anEconformation about the azobenzene [—N=N– = 1.2481 (16) Å] linkage. The benzene rings are almost coplanar [dihedral angle = 1.36 (7)°]. The O atoms of the carboxylic acid group are disordered over two sets of sites and were refined with an occupancy ratio of 0.5:0.5. The two disordered components of the carboxylic acid group make dihedral angles of 1.5 (14) and 3.8 (12)° with the benzene ring to which they are attached. In the crystal, molecules are linkedviapairs of O—H...O hydrogen bonds, forming inversion dimers. The dimers are connectedviaC—H...O hydrogen bonds, forming ribbons lying parallel to [120]. These ribbons are linkedviaC—H...π interactions, forming slabs parallel to (001).

Derivate des Benzo[1.3]dioxols, 431 Über Benzo [1.3] dioxolcarbonsäuren / Derivatives of 1,3-Benzodioxoles, 43 1,3-Benzodioxolecarboxylic Acids

1978 ◽  
Vol 33 (7-8) ◽  
pp. 465-471
Author(s):  
Franz Daliacker ◽  
Volker Mues ◽  
In-O Kim
Keyword(s):  
Carboxylic Acid ◽  
Methyl Ester ◽  
Benzoic Acid ◽  
Myristic Acid ◽  
Good Yield ◽  
Acid Ester ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
Derivatives Of

Abstract We describe the possibilities of formation and preparation of the “natural” 1,3-benzodioxolecarboxylic acids 1, 2, 4, 6 b, and 7, already mentioned in literature. Myristic acid (3e) was prepared in good yield from 3-methoxy-4,5-dihydroxy-benzoic acid ester (3c) , which could be easily made from 3-methoxy-2,3-carbonyldioxy-benzoic acid methylester (3b). Myristicic acid methylester (3d) could be subjected to methylation and hydrolysis leading to 3e without any difficulties. 4.6-dimethoxy-1,3-benzodioxole-5-carboxylic acid (5b) was prepared in good yields by oxidation of 4,6-dimethoxy-1,3-benzodioxole-5-aldehyde (5a). 5.7-dimethoxy-1,3-benzodioxole-carboxylic acid (13f), one of the “unnatural” 1,3-benzodioxolecarboxylic acids, derivatives of o-ipiperonylic acid (8), was prepared from 5-amino-7-methoxy-1,3- benzodioxole-4carboxylic acid methyl ester (13b) by diazotisation, elimination of nitrogen, methylation, and hydrolysis. A comparison of our measured pkA-values showed the strongest acidity belonging to 5,6-dimethoxy-1,3-benzodioxole-4-carbocylic acid (11).

Inhibitors of the geotropic response in plants. The crystal structures of 2-[(Naphthalen-2-yl)carbamoyl]benzoic acid (β-Naptalam), 2-(Phenylcarbamoyl)-benzoic acid and 2-(5-Phenyl-1,3,4-oxadiazol-2-yl)benzoic acid

1983 ◽  
Vol 36 (12) ◽  
pp. 2455 ◽  
Author(s):  
G Smith ◽  
CHL Kennard ◽  
GF Katekar
Keyword(s):  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Crystal Structures ◽  
Carboxylic Acids ◽  
Intermolecular Hydrogen Bonding ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylic Acid Groups ◽  
Phthalamic Acid

The crystal structures of three geotropically active phthalamic acid derivatives have been determined by means of X-ray diffraction and the structural systematics for the series compared. The three acids are conformationally similar and, in contrast to the tendency among carboxylic acids to form hydrogen-bonded dimers, they exist as monomers with intermolecular hydrogen bonding between the carboxylic acid groups and the nitrogen or oxygen of the amide side chains.

Exhaustive C-methylation of carboxylic acids by trimethylaluminium: A new route to t-butyl compounds

1974 ◽  
Vol 27 (8) ◽  
pp. 1665 ◽  
Author(s):  
A Meisters ◽  
T Mole
Keyword(s):  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Carboxylic Acids ◽  
Cinnamic Acid ◽  
Benzoic Acids ◽  
Naphthoic Acid ◽  
Triphenylacetic Acid

Carboxylic acids are exhaustively C-methylated to t-butyl compounds by excess trimethylaluminium at c. 120�. Benzoic acid for example, gives t-butylbenzene. Similarly methylated are o-fluoro-, o-bromo-, and m-chloro-benzoic acids, 5-chloro-3-phenylsalicylic acid, 1-naphthoic acid, palmitic, oleic and undec-10-enoic acids. Adamantane-1-carboxylic acid gives mostly l-isopropenyladaman- tane, along with some 1-t-butyladamantane. Cinnamic acid gives mainly the allylically rearranged 2-methyl-4-phenylpent-2-ene. Triphenylacetic acid behaves atypically; 1,1,1-triphenylpropan-2-one and 3,3,3-triphenylpropyne result.

scholarly journals Biodegradation ofn-Alkylcycloalkanes and n-Alkylbenzenes via New Pathways in Alcanivorax sp. Strain MBIC 4326

2001 ◽  
Vol 67 (4) ◽  
pp. 1970-1974 ◽  
Author(s):  
Tapan K. Dutta ◽  
Shigeaki Harayama
Keyword(s):  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Cyclohexanecarboxylic Acid ◽  
Long Chain

ABSTRACT The degradation of long-chain n-alkylbenzenes andn-alkylcyclohexanes by Alcanivorax sp. strain MBIC 4326 was investigated. The alkyl side chain of these compounds was mainly processed by β-oxidation. In the degradation ofn-alkylcyclohexanes, cyclohexanecarboxylic acid was formed as an intermediate. This compound was further transformed to benzoic acid via 1-cyclohexene-1-carboxylic acid.

scholarly journals Crystal structure and Hirshfeld analysis of 2-[bis(1-methyl-1H-indol-3-yl)methyl]benzoic acid

2018 ◽  
Vol 74 (11) ◽  
pp. 1580-1583
Author(s):  
Suhaila Sapari ◽  
Sheryn Wong ◽  
Mohammad Fadzlee Ngatiman ◽  
Huda Misral ◽  
Siti Aishah Hasbullah
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Benzoic Acid ◽  
Title Compound ◽  
Hirshfeld Surface ◽  
Dihedral Angles ◽  
Acid Moiety ◽  
Compound C ◽  
Hirshfeld Analysis

In the title compound, C26H22N2O2, the dihedral angles between the 1-methylindole units (A and B) and the benzoic acid moiety (C) are A/B = 64.87 (7), A/C = 80.92 (8) and B/C = 75.05 (8)°. An intramolecular C—H...O interaction arising from the methyne group helps to establish the conformation. In the crystal, R 2 2(8) carboxylic acid inversion dimers linked by pairs of O—H...O hydrogen bonds are observed. A Hirshfeld surface analysis shows that the greatest contributions are from H...H, C...H/H...C and O...H/H...O contacts (percentage values = 54.6%, 29.6% and 10.1%, respectively).

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