Réaction du sulfure de bore avec quelques composés difonctionnels

1972 ◽  
Vol 50 (11) ◽  
pp. 1675-1677 ◽  
Author(s):  
S. Jerumanis ◽  
P. A. Begin ◽  
D. Vu Cong
Keyword(s):  
Salicylic Acid ◽  
Succinic Acid ◽  
Phthalic Anhydride ◽  
Maleic Acid ◽  
Phthalic Acid ◽  
Quantitative Yield

Catechol reacts with boron sulfide to give 2,2′-o-phenylenedioxybis-(1,3,2-benzodioxaborole) (1) while only the hydroxyl function of salicylic acid reacts to give a quantitative yield of tris(o-carboxylphenoxy)borane (3). Phthalic acid is dehydrated to phthalic anhydride, but succinic acid and maleic acid have been found inert to the action of the boron sulfide.

Isolation and identification of by-products of gas phase catalytic oxidation of anthracene to 9,10-anthraquinone

1983 ◽  
Vol 48 (1) ◽  
pp. 112-122 ◽  
Author(s):  
Ivan Chvátal ◽  
Jan Vymětal ◽  
Jaroslav Pecha ◽  
Vilím Šimánek ◽  
Ladislav Dolejš ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Catalytic Oxidation ◽  
Gas Phase ◽  
Phthalic Anhydride ◽  
Maleic Acid ◽  
Phthalic Acid ◽  
Diels Alder ◽  
Acid Anhydride ◽  
Isolation And Identification ◽  
By Products

A total of 29 associate components were identified in technical 9,10-anthraquinone. The product contained all the prominent impurities present in the starting anthracene except for 9,10-dihydroanthracene and fluorene. 9-(9'-Anthryl)-carbazole and Diels-Alder type adducts of anthracene with maleic anhydride and with maleinimide were also detected. The isolated and identified by-products of oxidation of anthracene were 1,4-anthraquinone, 4,4'-dioxo-1,1'-bianthrylidene, 4,10'-dioxo-1,9'-bianthrylidene, 1-(4'-oxy-1'-naphthylidene)-4-oxyanthracene, 2,3-naphthalenedicarboxylic acid and anhydride, and 5,7,12,14-tetrahydro-5,14;7,12-di(o-benzeno)pentacene-6,13-dione. Of the compounds formed by oxidation of the anthracene impurities, isolated and identified were dibenzo[b,d]pyrone, xanthone, 1,8-naphthalenedicarboxylic acid anhydride,9-fluorenone, and naphthol[2,3-b]thiophene-4,9-dione. As products of a deeper oxidation of the starting compounds, phthalic anhydride, maleic anhydride, maleinimide, phthalic acid, and maleic acid were found. Four additional components whose structure could not be determined were also isolated. The pathway of the anthracene oxidation is suggested.

Conjugated microporous polymers as visible light responsible platform for photo-redox conversion of biomass derived chemicals

2021 ◽  
Author(s):  
Bo Chen ◽  
Lang Chen ◽  
Zijun Yan ◽  
Jinyang Kang ◽  
Shan-Yong Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Succinic Acid ◽  
Maleic Acid ◽  
Microporous Polymers ◽  
Redox Conversion ◽  
Conjugated Microporous Polymers

Photocatalytic conversion of biomass derived chemicals to valuable products is a highly sustainable process. Herein we report the photocatalytic hydrogenation of maleic acid to succinic acid and oxidation of 5-hydroxymethylfurfural...

The Electrolytic Reduction of Maleic Acid to Succinic Acid in Acid Solution

1949 ◽  
Vol 96 (6) ◽  
pp. 353 ◽  
Author(s):  
Sherlock Swann ◽  
K. H. Wanderer ◽  
H. J. Schaffer ◽  
W. A. Streaker
Keyword(s):  
Acid Solution ◽  
Succinic Acid ◽  
Maleic Acid ◽  
Electrolytic Reduction

scholarly journals The Effect of Narcotics on the Endogenous Respiration and Succinate Oxidation in Oyster Muscle

1948 ◽  
Vol 27 (2) ◽  
pp. 504-512
Author(s):  
George Frederick Humphrey
Keyword(s):  
Salicylic Acid ◽  
Oxygen Consumption ◽  
Benzoic Acid ◽  
Succinic Acid ◽  
Chloral Hydrate ◽  
Endogenous Respiration ◽  
Succinate Oxidation ◽  
Adductor Muscles

The action of the following compounds on homogenates of the adductor muscles of Saxostrea commercialis was studied: urethane, phenyl urethane, chloral hydrate, salicylic acid, morphine, caffeine, barbitone, benzoic acid, salicylamide and benzamide.It was found that, except for 0·05 M urethane, the endogenous oxygen consumption was reduced by all these compounds when present in concentrations ranging from o·001 to 0·05M. The oxidation of succinic acid was partially inhibited by these substances.These findings are discussed in relation to similar studies on other tissues.

scholarly journals Catalytic transfer hydrogenation of maleic acid with stoichiometric amounts of formic acid in aqueous phase: paving the way for more sustainable succinic acid production

2020 ◽  
Vol 22 (6) ◽  
pp. 1859-1872 ◽  
Author(s):  
M. López Granados ◽  
J. Moreno ◽  
A. C. Alba-Rubio ◽  
J. Iglesias ◽  
D. Martín Alonso ◽  
...  
Keyword(s):  
Formic Acid ◽  
Succinic Acid ◽  
Aqueous Phase ◽  
Maleic Acid ◽  
Acid Production ◽  
Reaction Medium ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
Catalytic Transfer ◽  
Succinic Acid Production

The aqueous phase hydrogenation of maleic acid to succinic acid (SAc) is proved using an efficient and robust Pd/C catalysts and stoichiometric formic acid as source of H2. SAc can be separated from the reaction medium by precipitation.

Ab initioand dielectric studies of succinic acid and maleic acid in 1,4-dioxane

2006 ◽  
Vol 32 (5) ◽  
pp. 331-337 ◽  
Author(s):  
V. Madhurima ◽  
K. Sudheendran ◽  
K. C. James Raju
Keyword(s):  
Succinic Acid ◽  
Maleic Acid ◽  
Dielectric Studies
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