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Encyclopedia > Formyl

In organic chemistry, formyl is the radical or functional group with the formula -COH and structure Organic chemistry is the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds that by definition contain carbon. ... In chemistry, radicals (often refered to as free radicals) are atomic or molecular species with unpaired electrons or an otherwise open shell configuration. ... In ecology functional groups are collections of organisms based on morphological, physiological, behavioral, biochemical, or environmental responses or on trophic criteria. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Chalcogens Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ...

 - C = O | H 

The formyl group is the acyl of formic acid and the chief functional group of aldehydes. It is a form of a carbonyl group. Indeed, the formyl group is also known as the aldehyde group. Chemical information about this group is contained in the article on aldehydes. An acyl or acyl group is any radical (or functional group) obtained from an carboxylic acid by the removal of the carboxylic hydroxyl group. ... Formic acid (systematically called methanoic acid) is the simplest carboxylic acid. ... An aldehyde is either a functional group consisting of a terminal carbonyl group or a compound containing a terminal carbonyl group. ... In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom. ...


  Results from FactBites:
 
L31.  UV Absorption Spectrum of Formyl Radical, HCO (478 words)
Formyl radicals were generated by pulsed photolysis of acetaldehyde at 308 nm (XeCl excimer laser).
The initial concentrations of formyl radicals were calculated based on the measured energy density of the laser radiation (Molectron EM400), the absorbed energy and the quantum yield of formyl radicals (0.95).
This determination is based on the measured cross-sections of formyl radical and on the equal yields of methyl and formyl radicals in the photolysis of acetaldehyde.
Amine separation process - Patent 5189221 (3217 words)
In accordance with the present invention, a formyldialkanolamine selected from the group consisting of formyldiethanolamine, formyl aminoethylethanolamine and formyl 2-(2-aminoethylamino)-ethanol is added to a mixture of alkyl amines to form a reaction mixture which is heated at a temperature of about 120.degree.
The starting materials for the present invention are carbon monoxide, a formyldialkanolamine selected from the group consisting of formyldiethanolamine, formyl aminoethylethanolamine and formyl 2-(2-aminoethylamino)-ethanol or, alternately, the corresponding dialkanolamine, and a mixture of C.sub.1 -C.sub.4 alkylamines such as a mixture of methylamines, a mixture of ethylamines, a mixture of isopropylamines, a mixture of butylamines, etc.
The formyldialkanolamine selected from the group consisting of formyldiethanolamine, formyl aminoethylethanolamine and formyl 2-(2-aminoethylamino)-ethanol starting material of the present invention may be used as such, or may be generated in situ by reacting the dialkanolamine with carbon monoxide at a temperature of about 100.degree.
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