Sulfonic acid is an unstable acid with the formula H-S(=O)₂-OH. In Computer science, ACID ( Atomicity Consistency Isolation Durability) is a set of properties that guarantee that Database transactions are Sulfonic acid is the less stable tautomer of sulfurous acid HO-S(=O)-OH into which sulfonic acid converts rapidly. Tautomers are Organic compounds that are interconvertible by a Chemical reaction called tautomerization. Sulfurous acid is the Chemical compound with the formula H2SO3 Derived compounds which replace the sulfur-bonded hydrogen with organic groups are stable. These may then form salts or esters, called sulfonates. Salt is a Dietary mineral composed primarily of Sodium chloride that is essential for Animal life but toxic to most land plants Esters are a class of Chemical compounds and Functional groups Esters consist of an inorganic or organic Acid in which at least A sulfonate ion is an ion that contains the -S(=O2-O&minus Functional group.

Contents 1 Sulfonic acids 2 Sulfonic acid chlorides 3 Sulfonic esters 4 See also 5 References

Sulfonic acids

Sulfonic acids are a class of organic acids with the general formula R-S(=O)₂-OH, where R is usually a hydrocarbon side chain. Ball-and-stick models and Space-filling models (also known as Calotte models) are 3D or spatial Molecular models which serve to display the structure An organic acid is an Organic compound with Acidic properties In Organic chemistry, a hydrocarbon is an Organic compound consisting entirely of Hydrogen and Carbon. A side chain in Organic chemistry and Biochemistry is a part of a Molecule that is attached to a core structure Sulfonic acids are typically much stronger acids than their carboxylic equivalents, and have the unique tendency to bind to proteins and carbohydrates tightly; most "washable" dyes are sulfonic acids (or have the functional sulfonyl group in them) for this reason. Carboxyl group or CO2H is a Functional group present in Amino acids and Carboxylic acids Its structure is composed of one carbon atom attached Proteins are large Organic compounds made of Amino acids arranged in a linear chain and joined together by Peptide bonds between the Carboxyl Carbohydrates (from ' Hydrates of Carbon ' or saccharides ( Greek σάκχαρον meaning " Sugar " are the most A dye can generally be described as a Colored substance that has an affinity to the substrate to which it is being applied A sulfonyl group is an organic radical or Functional group obtained from a Sulfonic acid by the removal of the Hydroxyl group They are also used as catalysts and intermediates for a number of different products. Catalysis is the process in which the rate of a Chemical reaction is increased by means of a Chemical substance known as a catalyst Sulfonic acids and their salts (sulfonates) are used extensively in such diverse products like detergents, antibacterial drugs sulfa drugs, anion exchange resins (water purification) and dyes. A sulfonate ion is an ion that contains the -S(=O2-O&minus Functional group. A detergent (as a noun is a material intended to assist Cleaning. There are several sulfonamide-based groups of drugs The original antibacterial sulfonamides (sometimes called simply sulfa drugs are synthetic antimicrobial agents that contain the sulfonamide The simplest example is methanesulfonic acid, CH₃SO₂OH, which is a reagent regularly used in organic chemistry. Methanesulfonic acid is a colorless liquid with the chemical formula CH4O3S A reagent or reactant is a substance or compound consumed during a Chemical reaction. Organic chemistry is a discipline within Chemistry which involves the scientific study of the structure properties composition reactions, and preparation p-Toluenesulfonic acid is also an important reagent. p -Toluenesulfonic acid (PTSA is an Organic compound with the formula CH3[[benzene C6H4]] SO3H

Sulfonic acid chlorides

Sulfonic acid chlorides are a class of organic compounds with the general formula R-SO₂-Cl. An organic compound is any member of a large class of Chemical compounds whose Molecules contain Carbon. These compounds react readily with nucleophiles (like alcohols, amines etc. In Chemistry, an alcohol is any Organic compound in which a Hydroxyl group ( - O[[hydrogen H]]) is bound to a Carbon Amines are Organic compounds and Functional groups that contain a basic Nitrogen Atom with a Lone pair. ) If the nucleophile is an alcohol the product is a sulfonic ester, if it is an amine the product is a sulfonamide. Important sulfonic acid chlorides are tosyl chloride, brosyl chloride, nosyl chloride and mesyl chloride. A tosyl group (abbreviated Ts or Tos) combines the Toluene and Sulfonyl Functional groups. A tosyl group (abbreviated Ts or Tos) combines the Toluene and Sulfonyl Functional groups. A tosyl group (abbreviated Ts or Tos) combines the Toluene and Sulfonyl Functional groups. In Chemistry, a mesylate is any Salt or Ester of Methanesulfonic acid ( C[[Hydrogen H]]3 S[[Oxygen O]]3H One synthetic procedure to synthesize sulfonic acid chlorides is the Reed reaction. The Reed reaction is a Chemical reaction that utilizes light to oxidize Hydrocarbons to Sulfonyl chlorides Sulfonyl chloride is very prone to hydrolysis. An ice/water bath can be used to decrease this effect (Titus 1982 & Lefevre 1996).

Sulfonic esters

Sulfonic esters are a class of organic compounds with the general formula R-SO₂-OR. An organic compound is any member of a large class of Chemical compounds whose Molecules contain Carbon. Sulfonic esters such as methyl triflate are considered good leaving groups in nucleophilic aliphatic substitution. Methyl trifluoromethanesulfonate, is commonly called methyl triflate, and has the chemical formula CF3SO2-OCH3 and is used as a very powerful A leaving group is an Atom or group of atoms that detaches from a chemical substance In organic and Inorganic chemistry, nucleophilic substitution is a fundamental class of Substitution reaction in which an "electron rich"

See also

• Sulfuric acid H₂SO₄
• Sulfonium S⁺, S⁺R₃

References

• J. Sulfuric (or sulphuric acid, H 2 S[[oxygen O]]4 is a strong Mineral acid. A sulfonium ion, also known as sulphonium ion and sulfanium ion, is a positively charged Sulfur Ion carrying three Alkyl groups A. Titus, R. Haugland, S. O. Sharrow and D. M. Segal , Texas red, a hydrophilic, red-emitting fluorophore for use with fluorescein in dual parameter flow microfluorometric and fluorescence microscopic studies. J. Immunol. Methods 50 (1982), pp. 193–204. doi:10. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. 1016/0022-1759(82)90225-3 
• C. Lefevre, H. C. Kang, R. P. Haugland, N. Malekzadeh, S. Arttamangkul, and R. P. Haugland, Texas Red-X and Rhodamine Red-X, New Derivatives of Sulforhodamine 101 and Lissamine Rhodamine B with Improved Labeling and Fluorescence Properties, Bioconj Chem 1996, 7(4):482-9 doi:10.1021/bc960034p

A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.

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