scholarly journals NOTES-Synthesis of Indigo from Fumaric Acid and Aniline; Preparation of Dibrom-succinic Acid; Fusion of Dianilido-succinic Acid to Indigo

1922 ◽  
Vol 44 (1) ◽  
pp. 215-216 ◽  
Author(s):  
G.C. Bailey ◽  
R.S. Potter
Keyword(s):  
Succinic Acid ◽  
Fumaric Acid

Metabolites of Aspergillus indicus: The structure and some aspects of the biosynthesis of dihydrocanadensolide

1968 ◽  
Vol 21 (11) ◽  
pp. 2775 ◽  
Author(s):  
AJ Birch ◽  
AA Qureshi ◽  
RW Rickards
Keyword(s):  
Succinic Acid ◽  
Fumaric Acid ◽  
Pyruvic Acid ◽  
Kojic Acid ◽  
Synthetic Medium ◽  
Nitropropionic Acid

Aspergillus indicus grown on a semi-synthetic medium produces a number of metabolites including kojic acid, succinic acid, fumaric acid, β-nitropropionic acid, indazonic acids, fumaryl-~danine, and dihydrocanadensolide. The last compound is shown to have the formula (I) and is biosynthesized in part from "acetate" units; the rest of the molecule may come from pyruvic acid.

Simultaneous Gas Chromatographic Determination of Carboxylic Acids in Soft Drinks and Jams

1985 ◽  
Vol 68 (5) ◽  
pp. 902-905
Author(s):  
Taizo Tsuda ◽  
Hiroshi Nakanishi ◽  
Takashi Morita ◽  
Junko Takebayashi
Keyword(s):  
Benzoic Acid ◽  
Succinic Acid ◽  
Tartaric Acid ◽  
Carboxylic Acids ◽  
Fumaric Acid ◽  
Malic Acid ◽  
Sorbic Acid ◽  
Chromatographic Determination ◽  
Dehydroacetic Acid

Abstract A method was developed for simultaneous gas chromatographic determination of sorbic acid, dehydroacetic acid, and benzoic acid used as preservatives, and succinic acid, fumaric acid, malic acid, and tartaric acid used as acidulants in soft drinks and jams. A sample was dissolved in NH4OH-NH4CI pH 9 buffer solution, and an aliquot of the solution was passed through a QAE-Sephadex A 25 column. The column was washed with water, and the carboxylic acids were eluted with 0.1N HC1. Sorbic acid, dehydroacetic acid, and benzoic acid were extracted with ethyl ether-petroleum ether (1 + 1), and determined on a 5% DEGS + 1% H3PO4 column. Succinic acid, fumaric acid, malic acid, and tartaric acid in the lower layer were derivatized with N,0- bis(trimethylsilyl)acetamide and trimethylchlorosilane, and determined on a 3% SE-30 column. Recoveries from soft drink and jam samples fortified with 0.1% each of 7 carboxylic acids ranged from 92.4 to 102.6% for preservatives, and from 88.1 to 103.2% for acidulants.

scholarly journals Carbamazepine-Fumaric Acid and Carbamazepine-Succinic Acid Co-crystal Screening Using Solution Based Method

2017 ◽  
Vol 8 (2) ◽  
pp. 136-140 ◽  
Author(s):  
Fatinah Ab Rahman ◽  
◽  
Syarifah Abd Rahim ◽  
C. Tan Chou ◽  
Souk H. Low ◽  
...  
Keyword(s):  
Succinic Acid ◽  
Fumaric Acid

scholarly journals Preparation of polyaniline nanostructures doped with different dicarboxylic acids through template-free method

2014 ◽  
Vol 32 (3) ◽  
pp. 419-422
Author(s):  
Chuanyu Sun ◽  
Yu Wang
Keyword(s):  
Dicarboxylic Acid ◽  
Succinic Acid ◽  
Tartaric Acid ◽  
Fumaric Acid ◽  
Maleic Acid ◽  
Dicarboxylic Acids ◽  
Template Free ◽  
Acid Dopants

AbstractIn this article nanoscaled polyanilines (PANI) were prepared based on template-free method in the presence of dicarboxylic acid dopants (e.g. D-tartaric acid, succinic acid, maleic acid and fumaric acid). The trans-cis isomerization of butenedioic acid played an important role in the formation of nanostructures from the plane-like to nanofibers, and the PANI doped with maleic acid (MA) had larger diameter, higher crystallinity and conductivity than PANI doped with fumaric acid (FA).

Organoselenium chemistry. Synthesis of selenetan-3-ol, 1-bromo-3-selenocyanatopropan-2-ol and 2-benzylseleno-substituted fumaricand succinic acids

1983 ◽  
Vol 36 (4) ◽  
pp. 815 ◽  
Author(s):  
AP Arnold ◽  
AJ Canty
Keyword(s):  
Succinic Acid ◽  
Fumaric Acid ◽  
Maleic Acid ◽  
Organoselenium Compounds ◽  
Catalysed Reaction ◽  
Acetylenedicarboxylic Acid

Approaches to the synthesis of diselenols have led to isolation of several new organoselenium compounds. Removal of mercury, as HgS, from [1,3-diselenylpropan-2-olato(2–)-Se,Sel]-mercury(II) results in decomposition of the organoselenium fragment to selenetan-3-ol, 1,3-Dibromopropan-2-ol reacts with KSeCN to form 1-bromo-3-selenocyanatopropan-2-ol; the selenoethers 2-(benzyl- se1eno)fumaric acid [(Z)-PhCH2SeC(CO2H)=CHCO2H] and 2-(benzylseleno)succinic acid [PhCH2SeCH(CO2H)CH2CO2H] are formed by base-catalysed reaction of phenylmethaneselenol with acetylenedicarboxylic acid and maleic acid, respectively. The conformations adopted by PhCH2XCH(CO2H)CH2CO2H (X = S, Se) in acetone have been determined by 1H n.m.r. spectroscopy.

Bioconversion of fumaric acid to succinic acid by recombinantE. coli

1998 ◽  
Vol 70-72 (1) ◽  
pp. 919-928 ◽  
Author(s):  
Xiaohai Wang ◽  
C. S. Gong ◽  
George T. Tsao
Keyword(s):  
Succinic Acid ◽  
Fumaric Acid

Production of Fumaric Acid Using Rice Bran and Subsequent Conversion to Succinic Acid Through a Two-Step Process

2004 ◽  
Vol 115 (1-3) ◽  
pp. 0843-0856 ◽  
Author(s):  
Se-Kwon Moon ◽  
Young-Jung Wee ◽  
Jong-Sun Yun ◽  
Hwa-Won Ryu
Keyword(s):  
Succinic Acid ◽  
Rice Bran ◽  
Fumaric Acid ◽  
Step Process ◽  
Subsequent Conversion

Isolation of fumaric acid, succinic acid, astragalin isoquercitrin and tiliroside from Pteridium aquilinum

1973 ◽  
Vol 12 (9) ◽  
pp. 2298-2299 ◽  
Author(s):  
Ching-Yung Wang ◽  
A.Mahir Pamukcu ◽  
George T. Bryan
Keyword(s):  
Succinic Acid ◽  
Fumaric Acid ◽  
Pteridium Aquilinum

Nanoscaled Polyaniline Doped with Different Dicarboxylic Acids Based On Template-Free Method

2011 ◽  
Vol 239-242 ◽  
pp. 219-222 ◽  
Author(s):  
Shao Jin Jia ◽  
Zhen Liu ◽  
Ping Kai Jiang ◽  
Jian Zhou
Keyword(s):  
Succinic Acid ◽  
Tartaric Acid ◽  
Fumaric Acid ◽  
Maleic Acid ◽  
Dicarboxylic Acids ◽  
Average Diameter ◽  
Template Free

With an average diameter of 148-285 nm and a conductivity of 2.38E-2- 5.88 E-2S/cm, Nanoscaled polyaniline (PANI) were synthesized based on template-free method in the presence of dicarboxylic acids dopants (e.g., D-tartaric acid, Succinic acid, maleic acid and fumaric acid). Furthermore, the trans-cis isomerization of butenedioic acid plays an important role in the formation of nanostructures from plane-like to nanofibers, and PANI-MA has larger diameter, higher crystallinity and conductivity than PANI-FA.

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