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Thiosulfonate
Thiosulfonates are organosulfur compounds with the formula RSO2SR'. Thiosulfonate esters are produced by oxidation of disulfides or by the reaction or organosulfonyl halides with thiolates. Alkali metal thiosulfonates are the conjugate base of thiosulfuric acid. They are prepared by the reaction of organo sulfonyl chlorides with sources of sulfide. See also *Bunte salts are related organosulfur compound Organosulfur compounds are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur derivatives, e.g., saccharin. Nature abounds with organosulfur compounds—sulfu ...s with the formula RSSO3− * Thiosulfinate a structurally analogous functional group in a lower oxidation state, with the formula RSS(O)R References Organosulfur compounds {{organic-chem-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunte Salt
In organosulfur chemistry, a Bunte salt is an archaic name for salts with the formula RSSO3–Na+. They are also called S-alkylthiosulfates or S-arylthiosulfates. These compounds are typically derived from alkylation on the pendant sulfur of sodium thiosulfate: :RX + Na2S2O3 → Na 3S2R + NaX They have been used as intermediates in the synthesis of thiols. They are also used to generate unsymmetrical disulfides: :Na 3S2R + NaSR' → RSSR' + Na2SO3 According to X-ray crystallography, they adopt the expected structure with tetrahedral sulfur(VI) atom, a sulfur-sulfur single bond, and three equivalent sulfur-oxygen bonds. See also *Thiosulfonates are organosulfur compound Organosulfur compounds are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur derivatives, e.g., saccharin. Nature abounds with organosulfur compounds—sulf ...s with the formula RSO2S− and RSO2SR' Referenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RSO2SR'
RSO or R.S.O. may refer to: Roles and titles * Range safety officer, a person responsible for the safe use of rocket vehicles * Radiation Safety Officer, a person responsible for the safe use of radiation and radioactive materials * Regional Security Officer, a Diplomatic Security Service Special Agent in charge of security at a US embassy * Regional Security Office, office in a US embassy or consulate for the Diplomatic Security Service * ', Knight of the Order of the Sword * Reconnaissance systems officer, operator of surveillance systems and equipment on a Lockheed SR-71 Blackbird aircraft Organisations * "Radio Symphony Orchestra", used by a number of orchestras: ** Danish National Symphony Orchestra, based in Copenhagen, Denmark ** North German Radio Symphony Orchestra, based in Hamburg, Germany ** Stuttgart Radio Symphony Orchestra, based in Stuttgart, Germany ** Bavarian Radio Symphony Orchestra, based in Munich, Germany ** Frankfurt Radio Symphony Orchestra, based i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organosulfur Compound
Organosulfur compounds are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur derivatives, e.g., saccharin. Nature abounds with organosulfur compounds—sulfur is vital for life. Of the 20 common amino acids, two (cysteine and methionine) are organosulfur compounds, and the antibiotics penicillin and sulfa drugs both contain sulfur. While sulfur-containing antibiotics save many lives, sulfur mustard is a deadly chemical warfare agent. Fossil fuels, coal, petroleum, and natural gas, which are derived from ancient organisms, necessarily contain organosulfur compounds, the removal of which is a major focus of oil refineries. Sulfur shares the chalcogen group with oxygen, selenium, and tellurium, and it is expected that organosulfur compounds have similarities with carbon–oxygen, carbon–selenium, and carbon–tellurium compounds. A classical chemical test for the detection of sulfur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disulfide
In biochemistry, a disulfide (or disulphide in British English) refers to a functional group with the structure . The linkage is also called an SS-bond or sometimes a disulfide bridge and is usually derived by the coupling of two thiol groups. In biology, disulfide bridges formed between thiol groups in two cysteine residues are an important component of the secondary and tertiary structure of proteins. '' Persulfide'' usually refers to compounds. In inorganic chemistry disulfide usually refers to the corresponding anion (−S−S−). Organic disulfides Symmetrical disulfides are compounds of the formula . Most disulfides encountered in organo sulfur chemistry are symmetrical disulfides. Unsymmetrical disulfides (also called heterodisulfides) are compounds of the formula . They are less common in organic chemistry, but most disulfides in nature are unsymmetrical. Properties The disulfide bonds are strong, with a typical bond dissociation energy of 60 kcal/mol (251&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfonyl Chloride
In inorganic chemistry, sulfonyl halide groups occur when a sulfonyl () functional group is singly bonded to a halogen atom. They have the general formula , where X is a halogen. The stability of sulfonyl halides decreases in the order fluorides > chlorides > bromides > iodides, all four types being well known. The sulfonyl chlorides and fluorides are of dominant importance in this series. Structure Sulfonyl halides have tetrahedral sulfur centres attached to two oxygen atoms, an organic radical, and a halide. In a representative example, methanesulfonyl chloride, the S=O, S−C, and S−Cl bond distances are respectively 142.4, 176.3, and 204.6 pm. Sulfonyl chlorides Sulfonic acid chlorides, or sulfonyl chlorides, are a sulfonyl halide with the general formula . Production Arylsulfonyl chlorides are made industrially in a two-step, one-pot reaction from an arene (in this case, benzene) and chlorosulfuric acid: :C6H6 + HOSO2Cl -> C6H5SO3H + HCl :C6H5SO3H + HOSO2Cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiosulfinate
In organosulfur chemistry, thiosulfinate is a functional group consisting of the linkage R-S(O)-S-R (R are organic substituents). Thiolsulfinates are also named as alkanethiosulfinic (or arenethiosulfinic) acid esters. They are the first member of a family of compounds containing an oxidized disulfide bond. Other members of this family include thiosulfonates (R-SO2-S-R), α-disulfoxides (R-S(O)-S(O)-R), sulfinyl sulfones (R-S(O)-SO2-R), and α-disulfones (R-SO2-SO2-R), all of which are known. The thiosulfinate group can occur in cyclic as well as acyclic structures. Occurrence A variety of acyclic and cyclic thiosulfinates are found in plants, or formed when the plants are cut or crushed. A well-known thiosulfinate is allicin, one of the active ingredients formed when garlic is crushed. Allicin was discovered in 1944 by Chester J. Cavallito and coworkers. Thiosulfinates containing various combinations of the methyl, ''n''-propyl, 1-propenyl, 2-propenyl, ''n''-butyl, 1-buten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
