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Sulfur–Sulfur Bond Construction
Topics in Current Chemistry, 2018Disulfide, as a common structural motif, has been frequently used in pharmaceuticals, nature products, and chemical biology. This chapter focuses on the methodologies that were reported recently for the synthesis of disulfide-containing compounds with particular emphasis on the synthesis of unsymmetrical disulfides.
Ming Wang, Xuefeng Jiang
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Journal of the American Academy of Dermatology, 1988
Sulfur is a time-honored therapeutic agent useful in a variety of dermatologic disorders. Its keratolytic action is due to formation of hydrogen sulfide through a reaction that depends upon direct interaction between sulfur particles and keratinocytes.
A N, Lin, R J, Reimer, D M, Carter
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Sulfur is a time-honored therapeutic agent useful in a variety of dermatologic disorders. Its keratolytic action is due to formation of hydrogen sulfide through a reaction that depends upon direct interaction between sulfur particles and keratinocytes.
A N, Lin, R J, Reimer, D M, Carter
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2007
Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock [1]. A yellow solid at room temperature, sulfur becomes progressively lighter in color at lower temperatures and is ...
Gerard E. d’Aquin, Robert C. Fell
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Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock [1]. A yellow solid at room temperature, sulfur becomes progressively lighter in color at lower temperatures and is ...
Gerard E. d’Aquin, Robert C. Fell
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Nickel mediated sulfur–selenium and sulfur–sulfur bond formation
Chemical Communications, 1999Electrophilic addition of the PhSeCl to a nickel dithiolate yields S,S′-bis(phenylselenenyl-N,N′-bis(mercaptoethyl)-1,5-diazacyclooctane nickel(II) dichloride and a dimeric, intermolecular bis-disulfide which results from ligand oxidation.
Chia-Huei Lai +2 more
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Sulfur Metabolism in Phototrophic Sulfur Bacteria
2008Phototrophic sulfur bacteria are characterized by oxidizing various inorganic sulfur compounds for use as electron donors in carbon dioxide fixation during anoxygenic photosynthetic growth. These bacteria are divided into the purple sulfur bacteria (PSB) and the green sulfur bacteria (GSB). They utilize various combinations of sulfide, elemental sulfur,
Frigaard, Niels-Ulrik, Dahl, Christiane
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Properties of Sulfur‐Sulfur Bonds
Angewandte Chemie International Edition in English, 1975AbstractSS bonds are extraordinarily flexible and have properties that are observed only on isolated occasions for other homonuclear bonds: the bond lengths very between 1.8 and 3.0Å, the bond angles between 90 and 180° and the dihedral angles between 0 and 180°; the bond energies amount to up to 430 kJ/mol.
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1992
Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/ gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock.4 A yellow solid at normal temperatures, sulfur becomes progressively lighter in color at lower temperatures and is ...
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Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/ gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock.4 A yellow solid at normal temperatures, sulfur becomes progressively lighter in color at lower temperatures and is ...
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Cytoplasmic sulfur trafficking in sulfur‐oxidizing prokaryotes
IUBMB Life, 2015AbstractPersulfide groups are chemically versatile and participate in a wide array of biochemical pathways. Although it is well documented that persulfurated proteins supply a number of important and elaborate biosynthetic pathways with sulfane sulfur, it is far less acknowledged that the enzymatic generation of persulfidic sulfur, the successive ...
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2023
Abstract Sulfur dioxide is simultaneously among the oldest wine technologies and among the most controversial—not only because some wine drinkers would rather see less of it, but because the biochemistry behind its antimicrobial, antioxidant, and other effects is convoluted.
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Abstract Sulfur dioxide is simultaneously among the oldest wine technologies and among the most controversial—not only because some wine drinkers would rather see less of it, but because the biochemistry behind its antimicrobial, antioxidant, and other effects is convoluted.
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Health Effects of Sulfur Oxides: Sulfur Dioxide and Sulfuric Acid
2000Sulfur dioxide (SO2) is a water soluble gas commonly emitted into ambient air by coal fired power plants, refineries, smelters, paper and pulp mills, and food processing plants. As you recall from Chapter 4, SO2is part of sulfurous air pollution that has plagued human populations for centuries.
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