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Triphenylmethanethiol
Triphenylmethanethiol is an organosulfur compound with the formula (C6H5)3CSH. It is the thiol derivative of the bulky substituent triphenylmethyl (called trityl). The compound forms a number of unusual derivatives that are more stable than less bulky analogues. The sulfenyl chloride (C6H5)3CSCl is obtained from the thiol with sulfuryl chloride. It in turn reacts with ammonia to form the sulfenamide (C6H5)3CSNH2. The thiol reacts with nitrous acid to give S-Nitrosotriphenylmethanethiol, ''S''-nitrosotriphenylmethanethiol (C6H5)3CSNO.{{cite journal, last1=Arulsamy, first1=N., last2=Bohle, first2=D. S., last3=Butt, first3=J. A., last4=Irvine, first4=G. J., last5=Jordan, first5=P. A., last6=Sagan, first6=E., date=1999, title=Interrelationships between conformational dynamics and the redox chemistry of ''S''-nitrosothiols, journal=Journal of the American Chemical Society, volume=121, issue=30, pages=7115–7123, doi=10.1021/ja9901314 References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S-Nitrosotriphenylmethanethiol
''S''-Nitrosotriphenylmethanethiol is the organosulfur compound with the formula (C6H5)3CSNO. It is a rare example of a nitrosothiol derivative that is robust solid at room temperature. The green compound can be produced by the reaction of triphenylmethanethiol with nitrous acid: :(C6H5)3CSH + HONO → (C6H5)3CSNO + H2O According to X-ray crystallography, ''S''-nitrosotriphenylmethanethiol features a conventional trityl group appended to a bent SNO substituent. The S-N=O angle is 114°, while the S-N and N=O distances are 1.78 and 1.79 Å. Other ''S''-nitrosothiols, e.g. MeSNO and SNAP Snap or SNAP may refer to: Arts and entertainment * ''Snap'', the original release title for the 2013 film ''Enter the Dangerous Mind'' *''Snap'' (TV series), a CITV programme * ''The Stanly News and Press'', a newspaper in Albemarle, North Carol ... have characterized by similar structures. References {{DEFAULTSORT:Nitrosotriphenylmethanethiol, S- Nitroso compounds Sulfur compounds ... [...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 co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiol
In organic chemistry, a thiol (; ), or thiol derivative, is any organosulfur compound of the form , where R represents an alkyl or other organic substituent. The functional group itself is referred to as either a thiol group or a sulfhydryl group, or a sulfanyl group. Thiols are the sulfur analogue of alcohols (that is, sulfur takes the place of oxygen in the hydroxyl () group of an alcohol), and the word is a blend of "''thio-''" with "alcohol". Many thiols have strong odors resembling that of garlic or rotten eggs. Thiols are used as odorants to assist in the detection of natural gas (which in pure form is odorless), and the "smell of natural gas" is due to the smell of the thiol used as the odorant. Thiols are sometimes referred to as mercaptans () or mercapto compounds, a term introduced in 1832 by William Christopher Zeise and is derived from the Latin ('capturing mercury')''Oxford American Dictionaries'' (Mac OS X Leopard). because the thiolate group () bonds very strong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triphenylmethyl
The triphenylmethyl radical (often shorted to trityl radical) is an organic compound with the formula (C6H5)3C. It is a persistent radical. It was the first radical ever to be described in organic chemistry. Because of its accessibility, the trityl radical has been heavily exploited. Preparation and properties It can be prepared by homolysis of triphenylmethyl chloride 1 by a metal like silver or zinc in benzene or diethyl ether. The radical 2 forms a chemical equilibrium with the quinoid-type dimer 3 ( Gomberg's dimer). In benzene the concentration of the radical is 2%. Solutions containing the radical are yellow; when the temperature of the solution is raised, the yellow color becomes more intense as the equilibrium is shifted in favor of the radical (in accordance with Le Chatelier's principle). When exposed to air, the radical rapidly oxidizes to the peroxide, and the color of the solution changes from yellow to colorless. Likewise, the radical reacts with iodine to tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfenyl Chloride
In organosulfur chemistry, a sulfenyl chloride is a functional group with the connectivity , where R is alkyl or aryl. Sulfenyl chlorides are reactive compounds that behave as sources of . They are used in the formation of and bonds. According to IUPAC nomenclature they are named as alkyl thiohypochlorites, i.e. esters of thiohypochlorous acid. Preparation Sulfenyl chlorides are typically prepared by chlorination of disulfides: :R2S2 + Cl2 -> 2 R-SCl This reaction is sometimes called the Zincke disulfide reaction, in recognition of Theodor Zincke. Typically, sulfenyl halides are stabilized by electronegative substituents. This trend is illustrated by the stability of obtained by chlorination of carbon disulfide. Some thioethers () with electron-withdrawing substituents undergo chlorinolysis of a bond to afford the sulfenyl chloride. Reactions Perchloromethyl mercaptan () reacts with bonds in the presence of base to give the sulfenamides: :CCl3SCl + R2NH -> CCl3SNR2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfuryl Chloride
Sulfuryl chloride is an inorganic compound with the formula SO2Cl2. At room temperature, it is a colorless liquid with a pungent odor. Sulfuryl chloride is not found in nature, as can be inferred from its rapid hydrolysis. Sulfuryl chloride is commonly confused with thionyl chloride, SOCl2. The properties of these two sulfur oxychlorides are quite different: sulfuryl chloride is a source of chlorine whereas thionyl chloride is a source of chloride ions. An alternative IUPAC name is sulfuroyl dichloride. Structure Sulfur is tetrahedral in SO2Cl2 and the oxidation state of the sulfur atom is +6, as in sulfuric acid. Synthesis SO2Cl2 is prepared by the reaction of sulfur dioxide and chlorine in the presence of a catalyst, such as activated carbon. :SO2 + Cl2 → SO2Cl2 The product can be purified by fractional distillation. Legacy routes Sulfuryl chloride was first prepared in 1838 by the French chemist Henri Victor Regnault. Legacy routes include oxidation of thionyl ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiols
In organic chemistry, a thiol (; ), or thiol derivative, is any organosulfur compound of the form , where R represents an alkyl or other organic substituent. The functional group itself is referred to as either a thiol group or a sulfhydryl group, or a sulfanyl group. Thiols are the sulfur analogue of alcohols (that is, sulfur takes the place of oxygen in the hydroxyl () group of an alcohol), and the word is a blend of "''thio-''" with "alcohol". Many thiols have strong odors resembling that of garlic or rotten eggs. Thiols are used as odorants to assist in the detection of natural gas (which in pure form is odorless), and the "smell of natural gas" is due to the smell of the thiol used as the odorant. Thiols are sometimes referred to as mercaptans () or mercapto compounds, a term introduced in 1832 by William Christopher Zeise and is derived from the Latin ('capturing mercury')''Oxford American Dictionaries'' (Mac OS X Leopard). because the thiolate group () bonds very strongly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
