Results 111 to 120 of about 1,991 (147)

THE INVESTIGATION OF IONIC AND MOLECULAR ADSORPTION ON PLATINUM IN TRIFLUOROMETHANESULFONIC ACID AND RELATED ALKANESULFONIC ACIDS

2023
The nature of adsorption on platinum in the presence of trifluoromethanesulfonic acid (TFMSA) has been studied in an attempt to understand what factors make TFMSA a superior electrolyte to H(,3)PO(,4) under fuel cell conditions. The study has encompassed both molecular adsorption and ionic adsorption. From the molecular point of view, the adsorption of
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ChemInform Abstract: SYNTHESIS OF THREE PARTIALLY FLUORINATED ALKANESULFONIC ACIDS AS POTENTIAL FUEL‐CELL ELECTROLYTES

Chemischer Informationsdienst, 1981
AbstractDie Sulfonsäuren (IV) werden aus den entsprechenden Alkoholen über die Tosylate (und eventuell Bromide) (I), die Sulfide (II) und die Sulfonylchloride (III) dargestellt.
C. BUNYAGIDJ, H. PIOTROWSKA, M. H. ALDRIDGE   +2 more
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ChemInform Abstract: ON THE REACTION OF ALKANESULFONIC ACID CHLORIDES WITH ALCOHOLS AND PHENOLS

Chemischer Informationsdienst, 1976
AbstractReaktionen der Sulfonsäurechloride (I) mit den Alkoholen bzw. Phenolen (II) in Gegenwart von Triäthylamin (oder NH3) liefern glatt die Sulfonsäureester (III).
E. P. PANOV, V. M. KOSTYUCHENKO, YU. G. SKRYPNIK, S. P. ZOLOTUKHIN, R. V. VIZGERT   +4 more
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ChemInform Abstract: Synthesis of γ‐Sultones of 1‐(3‐Hydroxy‐4‐homoadamantyl)‐1‐alkanesulfonic Acids.

ChemInform, 1988
AbstractThe reaction between the 1‐(1‐adamantyl)‐1‐alkanols (I) and H2SO4 affords the hitherto unknown title compounds (III).
V. V. KOVALEV, E. A. SHOKOVA
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METHOD FOR PRODUCING ALKANESULFONIC ACIDS

2000
The invention relates to a method for producing alkanesulfonic acids from dialkyl sulfites, which comprises the following steps: transformation of dialkyl sulfite in the presence of a suitable catalyst in to the corresponding alkanesulfonic acid alkyl ester; and hydrolysis of said alkanesulfonic acid alkyl ester to obtain the corresponding ...
BASF AG, HALBRITTER KLAUS, STERZEL HANS JOSEF, EIERMANN MATTHIAS, FREUDENTHALER EVA   +4 more
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ChemInform Abstract: 4,5‐DIHYDRO‐5‐THIOXO‐1H‐TETRAZOLE‐1‐ALKANOIC AND ALKANESULFONIC ACIDS AND THEIR AMIDE DERIVATIVES

Chemischer Informationsdienst, 1979
AbstractAmine (I) reagieren mit Schwefelkohlenstoff und Methyliodid zum Dithiocarbaminat (II), das mit Natriumazid zu den Tetrazolonen (III) kondensiert wird.
D. A. BERGES, G. W. CHAN, T. J. POLANSKY, J. J. TAGGART, G. L. DUNN   +4 more
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ChemInform Abstract: Alkanesulfonic Acids and Acyclic Derivatives (Update 2011)

ChemInform, 2012
AbstractReview: 83 refs.
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4,5‐Dihydro‐5‐thioxo‐]H‐tetrazoie‐l‐alkanoic and alkanesulfonic acids and their amide derivatives

Journal of Heterocyclic Chemistry, 1978
AbstractHomologous 4,5‐dihydro‐5‐thioxo‐1H‐tetrazole‐l‐alkanoic and alkanesulfonic acids were prepared by reaction of sodium azide with methyl (carboxyalkyl)‐ and (sulfoalkyl) carbamodithioates, respectively. 4,5‐Dihydro‐5‐thioxo‐1H‐tetrazole‐i‐alkanamides were derived from the corresponding alkanoic acids by aminolysis of their acid chlorides or ...
David A. Berges, George W. Chan, Theodore J. Polansky, John J. Taggart, George L. Dunn   +4 more
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Desulfonation of propanesulfonic acid by Comamonas acidovorans strain P53: evidence for an alkanesulfonate sulfonatase and an atypical sulfite dehydrogenase

Archives of Microbiology, 1999
Evidence is presented for the presence in propanesulfonate-grown Comamonas acidovorans strain P53 of a cytoplasmically located sulfonatase that does not sediment at 100,000 x g. This enzyme catalysed the sulfonate-dependent oxidation of NADH or NADPH, indicating a monooxygenase that effects the addition of molecular oxygen to C(3)-C(6) 1 ...
, Reichenbecher, , Kelly, , Murrell
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13C-enriched methyl alkanesulfonates: New lipophilic methylating agents for the identification of nucleophilic amino acids of proteins by NMR.

Tetrahedron Letters, 1992
Abstract 13 C labelled methyl alkylsulfonates are low cost and easily accessible methylating agents. They were used as NMR probes, in association with DEPT 13 C{ 1 H} NMR and 2D reversed { 1 H, 13 C} correlation NMR for the identification of nucleophilic residues of proteins.
Jean-Pierre Lepoittevin, Claude Benezra
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