Information om | Engelska ordet DISULFIDES

Exempel på hur man kan använda DISULFIDES i en mening

• Accelerators (also known as brighteners) (typically thiols or disulfides such as 3-Mercapto-1-propanesulfonic acid or bis-(3-sodium sulfopropyl) disulfide).
• DEAD is an aza-dienophile and an efficient dehydrogenating agent, converting alcohols to aldehydes, thiols to disulfides and hydrazo groups to azo groups; it is also a good electron acceptor.
• CuCN has also been introduced as a mild electrophilic source of nitrile under oxidative conditions, for instance secondary amines as well as sulfides and disulfides have been efficiently cyanated using this methodology.
• These efforts led to the discovery of allicin (diallyl thiosulfinate) in garlic, which became a model for medicinal chemistry efforts to create other thiamine disulfides.
• It is a proprietary catalytic chemical process developed by UOP used in oil refineries and natural gas processing plants to remove mercaptans from LPG, propane, butanes, light naphthas, kerosene, and jet fuel by converting them to liquid hydrocarbon disulfides.
• The report contains discussion of various harmful chemicals "likely to be present" in the waste—sodium hydroxide, cobalt phthalocyanine sulfonate, coker naphtha, thiols, sodium alkanethiolate, sodium hydrosulfide, sodium sulfide, dialkyl disulfides, hydrogen sulfide—and notes that some of these "may cause harm at some distance".
• The doctor sweetening process is an industrial chemical process for converting mercaptans in sour gasoline into disulfides.
• Thiols can be synthesized to disulfides like cystamine through chemical oxidation with various oxidizing agents (molecular oxygen, metal ion, metal oxide, DMSO, nitric oxide, halogen and sodium perborate), through electrochemical oxidation and through borohydride exchange resin (BER)-transition metal salts systems (like BER-CuSo4).
• Thiuram disulfides react with Grignard reagents to give esters of dithiocarbamic acid, as in the preparation of methyl dimethyldithiocarbamate:.
• Singlet disulfur is believed to be the product of trisulfides with triphenylphosphine dibromide, or the thermal decomposition of dialkoxy disulfides.
• Reoxidation of the class I disulfides of the rat adipocyte insulin receptor is dependent upon the presence of insulin: the class I disulfide of the insulin receptor is extracellular.
• Dialkoxy dixanthogen disulfides undergo desulfurization by cyanide to give bis(alkoxythiocarbonyl)sulfides:.
• Linkers are based on chemical motifs including disulfides, hydrazones or peptides (cleavable), or thioethers (noncleavable).
• Additionally primary as well as secondary and tertiary amines form sulfenamides through reaction with, thiols, disulfides, and sulfenyl thiocyanates.
• Organic disulfides oxidize low valence metals, as illustrated by the oxidation of titanocene dicarbonyl:.
• Thiosulfonate esters are usually produced by oxidation of disulfides or the nucleophilic attack of thiolates on organosulfonyl halides.
• It is prepared by desulfuration of tetramethylthiuram disulfides with triphenylphosphine or cyanide:.
• Because sulfur dichloride unavoidably forms some disulfur dichloride and chlorine in solution, this technique also forms di(organyloxy) disulfides and dialkyl sulfites.
• Sulfinyl nitrenes are unstable and react with themselves to yield sulfonyl nitrenes, disulfides or polymerise to trioxotrithiztriazes.

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