All articles starting with D
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Decarbonylative C–N bond activation of amides
Decarbonylative C–N bond activation of amides is a synthetic organic chemistry strategy where a transition-metal catalyst inserts into the amide C–N bond and expels carbon monoxide.
Decarboxylation
Decarboxylation, or the decarboxylation reaction, removes a carboxyl group from a molecule and releases it as carbon dioxide, underlying the citric acid cycle and modern synthetic methods.
Decarboxylative alkylation
Decarboxylative alkylation is a carbon–carbon bond-forming reaction that transfers an alkyl group from a carboxylic acid to a coupling partner with loss of carbon dioxide, typically via alkyl radicals, first reported by Francesco Minisci in 1968.
Decarboxylative alkynylation
Decarboxylative alkynylation is a family of chemical reactions in which carboxylic acids lose carbon dioxide and couple to an alkyne unit, giving milder conditions than classical alkyne syntheses and applications in chemical biology and drug discovery.
Decarboxylative amidation
Decarboxylative amidation is an organic reaction in which carboxylic acids lose carbon dioxide and form carbon–nitrogen bonds, yielding amides or alkylamines valued in drug synthesis.
Decarboxylative amination
Decarboxylative C–N coupling is a family of carbon–nitrogen bond-forming reactions in which carboxylic acids, activated as redox-active esters, replace organohalides and release CO2, spanning transition-metal, photoredox, electrochemical, and metal-free methods.
Decarboxylative borylation
Decarboxylative borylation is a chemical reaction that converts a carboxylic acid into a boronic ester with loss of carbon dioxide, replacing the carboxyl group with boron.
Decarboxylative borylation of redox-active esters
Decarboxylative borylation of redox-active esters converts NHPI esters of carboxylic acids into alkyl boronate esters with loss of carbon dioxide, becoming a practical synthesis tool after 2017 breakthroughs.
Decarboxylative C–H functionalization
Decarboxylative C–H functionalization is a synthetic strategy in organic chemistry that forms carbon–carbon bonds by combining C–H activation with decarboxylation, with applications including the Minisci reaction of heteroarenes.
Decarboxylative C(sp3)–N coupling with ammonia
Decarboxylative C(sp3)–N coupling with ammonia is a strategy for converting alkyl carboxylic acids into alkyl amines, replacing the carboxyl group with an amino unit while releasing carbon dioxide.
Decarboxylative coupling
Decarboxylative coupling is a cross-coupling method in organic chemistry that forms carbon–carbon bonds from carboxylic acids with loss of carbon dioxide, avoiding preformed organometallic reagents; catalytic variants date to 2006.
Decarboxylative cross-coupling of redox-active esters
Decarboxylative cross-coupling of redox-active esters is a family of radical reactions in which NHPI esters made from carboxylic acids release carbon dioxide and form new C–C and C–heteroatom bonds.
Decarboxylative fluorination
Decarboxylative fluorination is a chemical reaction converting carboxylic acids into fluorinated compounds, replacing the carboxyl group with fluorine while releasing carbon dioxide, under conditions milder than classical fluorination methods.
Decarboxylative fluoromethylation
Decarboxylative fluoromethylation is a family of organic reactions in which carboxylic acids lose CO2 to give alkyl fluorides or fluoroalkyl products, best known from 2015 visible-light photoredox fluorination.
Decarboxylative Giese addition
Decarboxylative Giese addition is an organic reaction in which a carbon radical, generated by loss of carbon dioxide from a carboxylic acid, adds to an electron-deficient alkene.
Decarboxylative hydroxylation
Decarboxylative hydroxylation is a chemical transformation that converts carboxylic acids into alcohols or phenols with one fewer carbon atom, achieved by photocatalytic, electrochemical, and enzymatic methods.
Decarboxylative radical addition
Decarboxylative radical addition is an organic reaction in which a carboxylic acid loses carbon dioxide to give a carbon-centered radical that adds to an alkene, forming a new carbon–carbon bond.
Decarboxylative radical cascade
A decarboxylative radical cascade is a one-pot organic synthesis in which loss of carbon dioxide from a carboxylic acid generates a radical that forms two or more bonds sequentially.
Decarboxylative trifluoromethylation
Decarboxylative trifluoromethylation is a family of chemical reactions in which carboxylic acids lose carbon dioxide and gain a trifluoromethyl (CF3) group, forming a new C–CF3 bond.
Decart
Decart is an Israeli AI startup, founded in 2023 in Mevaseret Zion, that builds real-time generative world models like Oasis and was reportedly valued near $4 billion in 2026.
Decathlon
Decathlon: ten-event men's track and field combined competition over two consecutive days (100m, LJ, SP, HJ, 400m; 110mH, discus, PV, javelin, 1500m), scored by World Athletics 1985 tables; world record 9126 by Kevin Mayer (2018).
Decathlon (retailer)
Decathlon, French sporting goods retailer founded by Michel Leclercq in 1976 in Englos near Lille; world's largest sporting goods retailer, 1,700+ stores, 70+ countries, over 80% own-brand sales, family-owned under the Mulliez group.
Decatungstate photocatalysis
Decatungstate photocatalysis is the use of the tungsten-based polyoxometalate anion [W10O32]4−, commonly as its tetrabutylammonium salt TBADT, to functionalize aliphatic carbon–hydrogen bonds under mild conditions.
Decatur, Alabama
Decatur, Alabama, county seat of Morgan County on the Tennessee River, founded 1820 and named for Stephen Decatur. Eastern terminus of Alabama's first railroad, site of the 1864 Battle of Decatur, home to the Port of Decatur and manufacturers including 3M, Nucor, and United Launch Alliance; population 57,938 (2020).
Decatur, Georgia
Decatur, Georgia: DeKalb County seat incorporated December 10, 1823, named for Commodore Stephen Decatur; second-oldest metro Atlanta municipality, six miles east of downtown, commission-manager government, independent schools, 2020 population 24,928.
Decatur, IL Metro Area
Decatur, IL Metro Area (CBSA 19500): a single-county Illinois metropolitan statistical area covering Macon County with principal city Decatur; about 100,000-104,000 residents, declining population, manufacturing-based economy.
Decatur, Illinois
Decatur, Illinois: county seat of Macon County in central Illinois, founded 1823, population about 68,000. Home of ADM's North American headquarters, Lake Decatur, and Abraham Lincoln's first Illinois homestead (1830).
DeCavalcante crime family
DeCavalcante crime family, also called the New Jersey family or 'Real Sopranos': an Elizabeth/Newark-based La Cosa Nostra family, the only indigenous New Jersey Mafia family, built on construction union rackets under Simone 'Sam the Plumber' DeCavalcante and John Riggi.
Decawave
Decawave (DecaWave Limited) was a Dublin-based fabless semiconductor company, founded in 2007, that made ultra-wideband transceiver chips for centimeter-accurate indoor positioning; Qorvo acquired it in 2020.
Decawave DW1000
The Decawave DW1000 is a single-chip ultra-wideband transceiver IC from the Irish company Decawave, compliant with IEEE 802.15.4a and used for location and asset tracking to 10 cm precision.