42,772 articles
Organic polysulfide
Organic polysulfides are compounds of the form R–[S]n–R, where a chain of two or more sulfur atoms links two organic groups, ranging from disulfides to elastomers used in sealants.
Organic reaction
An organic reaction, also called an organic chemical reaction, is a chemical reaction involving organic compounds, in which covalent bonds in carbon-containing molecules are broken and formed.
Organic Reactions
Organic Reactions is an American book series of critical review chapters on individual synthetic organic reactions, published by John Wiley & Sons since 1942 and run by a nonprofit whose editors serve without pay.
Organic semiconductor
An organic semiconductor is a carbon-based material that conducts charge between insulator and metal levels and serves as the active layer in OLEDs, solar cells, and transistors.
Organic spintronics
Organic spintronics is the branch of spintronics in which organic semiconductors transport spin-polarized carriers, combining spin electronics with the flexibility and low cost of organic materials.
Organic sulfide
An organic sulfide, also called a thioether, is an organosulfur compound with the structure R–S–R, the sulfur analog of an ether that includes dimethyl sulfide.
Organic superconductor
An organic superconductor is a superconducting material built from carbon-based molecules rather than inorganic lattices, first reported in 1980 by Denis Jérôme and Klaus Bechgaard.
Organic Syntheses
Organic Syntheses is an annual publication of checked procedures for preparing organic compounds, published since 1921, with every procedure reproduced by an editor before publication.
Organic synthesis
Organic synthesis, also called synthetic organic chemistry, is the branch of chemistry that deliberately builds organic compounds, a field dated to Friedrich Wöhler's 1828 synthesis of urea.
Organoboron chemistry
Organoboron chemistry is the branch of chemistry concerned with compounds containing a direct carbon-to-boron bond, from boranes to boronic acids, and among the most widely used reagents in modern organic synthesis.
Organocatalysis
Organocatalysis is catalysis by small organic molecules rather than metals or enzymes, distinguished in asymmetric form by the 2021 Nobel Prize to List and MacMillan.
Organocatalytic asymmetric photoredox dual catalysis
Organocatalytic asymmetric photoredox dual catalysis is a synthetic chemistry strategy where a photoredox catalyst generates radicals and a chiral organocatalyst directs them into highly enantioselective bonds.
Organocatalytic enantioselective photoredox conjugate addition
Organocatalytic enantioselective photoredox conjugate addition is a dual-catalysis method in organic synthesis in which a photocatalyst generates carbon-centered radicals and a chiral amine catalyst adds them enantioselectively to enals.
Organocatalytic ring-opening polymerization
Organocatalytic ring-opening polymerization uses small organic molecules made only of nonmetal elements as catalysts, chiefly for cyclic esters and carbonates, producing biodegradable polymers free of costly metallic residues.
Organocatalyzed atom transfer radical polymerization
Organocatalyzed atom transfer radical polymerization (O-ATRP) is a light-driven, metal-free polymerization in which organic photoredox catalysts, rather than copper complexes, control radical growth, first reported in Science in 2016.
Organohaloaluminate electrolyte
An organohaloaluminate electrolyte is a class of non-aqueous battery electrolyte, made from a Grignard reagent and an aluminum Lewis acid, that enabled the first rechargeable magnesium battery in 2000.
Organohydrogels
Organohydrogels are crosslinked polymer gels whose network holds a mixed water and organic solvent, such as glycerol or ethylene glycol, resisting freezing and drying for wearable electronics.
Organolanthanide chemistry
Organolanthanide chemistry, also called organolanthanides, is the branch of organometallic chemistry concerned with compounds containing lanthanide–carbon bonds, begun in 1954 and now a major area of homogeneous catalysis, polymerization, and redox chemistry.
Organoleptic testing
Organoleptic testing is sensory testing carried out by human assessors, treated as a measuring instrument, used in quality control for accept/reject and difference-or-similarity decisions, with analytical product-focused and affective consumer-focused tests.
Organolithium reagent
An organolithium reagent is an organometallic compound containing a carbon-lithium bond, first prepared in 1917 and widely used in organic synthesis as a strong base and nucleophile.
Organometallic chemistry
Organometallic chemistry, also known as metallochemistry, is the study of compounds containing metal–carbon bonds, a field begun with Zeise's salt in 1825 and central to Grignard reagents, ferrocene, and industrial catalysis.
Organonickel chemistry
Organonickel is a branch of organometallic chemistry concerned with nickel-carbon ($ ext{Ni}- ext{C}$) bonds. Known since the 1890s, these reactive species are characterized primarily as intermediates in cross-coupling processes.
Organophosphate
An organophosphate, also called a phosphate ester, is an organic ester of phosphoric acid; many inhibit acetylcholinesterase and serve as pesticides or prohibited chemical warfare agents.
Organophosphorus chemistry
Organophosphorus chemistry is the branch of chemistry studying compounds with phosphorus–carbon bonds, spanning phosphines, phosphates, phosphonates, ylides, and phosphazenes, applied in catalysis, medicine, agrochemicals, and flame retardants.
Organophosphorus compounds
Organophosphorus compounds are organic molecules with a P–C bond, which are synthesized industrially from P4 derivatives and span oxidation states from P(III) to P(V), used in flame retardants and ligands.
Organophotocatalysis with cyanoarenes
Organophotocatalysis with cyanoarenes uses metal-free donor–acceptor organic dyes, the prototype 4CzIPN introduced in 2016, as photocatalysts absorbing visible light to drive single-electron-transfer reactions, widely replacing ruthenium and iridium catalysts.
Organophotoredox catalysis
Organophotoredox catalysis is a branch of photoredox catalysis in which organic molecules absorb visible light and shuttle single electrons to generate radical intermediates under mild conditions.
Organosilicon chemistry
Organosilicon chemistry, the study of compounds containing silicon–carbon bonds, began with tetraethylsilane and now underpins a large silicone industry plus reagents for organic synthesis, pharmaceuticals, and materials.
Organosolv pretreatment
Organosolv pretreatment is a chemical fractionation method that cooks lignocellulosic biomass in aqueous organic solvent, often acid-catalyzed, to dissolve lignin and hemicellulose, leaving cellulose-rich pulp for biofuel use.
Organosulfur compounds
Organosulfur compounds are organic molecules containing a carbon–sulfur bond, spanning thiols, sulfides, disulfides, sulfoxides, sulfones, and thiophene, and central to odor chemistry, protein biochemistry, and industrial synthesis.