- CERAMIDE DIMER, METHOD FOR THE PRODUCTION THEREOF, AND USE OF SAME
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The invention relates to ceramide dimers in which the amino alcohols are linked together by amide bonds via a dicarboxylic acid. The dicarboxylic acids have at least one sulfur atom in the chain. The invention also relates to a method for producing the ceramide dimers. The ceramide dimers are used as active ingredients to stabilize the skin barrier in cosmetic and pharmaceutical preparations.
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- [FeFe]-Hydrogenase H-Cluster Mimics with Various -S(CH2)nS- Linker Lengths (n = 2-8): A Systematic Study
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The effect of the nature of the dithiolato ligand on the physical and electrochemical properties of synthetic H-cluster mimics of the [FeFe]-hydrogenase is still of significant concern. In this report we describe the cyclization of various alkanedithiols to afford cyclic disulfide, tetrasulfide, and hexasulfide compounds. The latter compounds were used as proligands for the synthesis of a series of [FeFe]-hydrogenase H-cluster mimics having the general formulas [Fe2(CO)6{μ-S(CH2)nS}] (n = 4-8), [Fe2(CO)6{μ-S(CH2)nS}]2 (n = 6-8), and [Fe2(CO)6{(μ-S(CH2)nS)2}] (n = 6-8). The resulting complexes were characterized by 1H and 13C{1H} NMR and IR spectroscopic techniques, mass spectrometry, and elemental analysis as well as X-ray analysis. The purpose of this research was to study the influence of the systematic increase of n from 2 to 7 on the redox potentials of the models and the catalytic ability in the presence of acetic acid (AcOH) by applying cyclic voltammetry.
- Abul-Futouh, Hassan,Almazahreh, Laith R.,Harb, Mohammad Kamal,G?rls, Helmar,El-Khateeb, Mohammad,Weigand, Wolfgang
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p. 10437 - 10451
(2017/09/12)
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- One pot rapid synthesis of thiols from alcohols under mild conditions
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Thiols are prepared in high yields from corresponding alcohols using Ph3P, NBS in acetone and followed by addition of polymer supported hydrosulfide under mild condition.
- Bandgar,Sadavarte
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p. 908 - 910
(2007/10/03)
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- Remarkably fast direct synthesis of thiols from alcohols under mild conditions
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One pot rapid synthesis of thiols from alcohols via trifluoroacetates using polymer supported hydrosulfide in acetonitrile under mild conditions has been described.
- Bandgar,Sadavarte,Uppalla
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p. 1304 - 1305
(2007/10/03)
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- Polyfunctional disulfide compounds having S--S exchange reactivity
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A polyfunctional disulfide compound, useful as a cross-linking reagent having S--S exchange reactivity, of the formula STR1 wherein R is 2-benzothiazolyl or 2-pyridyl-N-oxide and X is a spacer group having an alkylene group directly bonded to each S--S group.
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