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In organic chemistry, an acyl chloride (or acid chloride) is an organic compound with the functional group −C(=O)Cl. Their formula is usually written R−COCl, where R is a side chain. They are reactive derivatives of carboxylic acids (R−C(=O)OH). A specific example of an acyl chloride is acetyl chloride, CH 3 COCl.
In the IUPAC nomenclature of organic chemistry, the systematic names of acyl groups are derived exactly by replacing the -yl suffix of the corresponding hydrocarbyl group's systemic name (or the -oic acid suffix of the corresponding carboxylic acid's systemic name) with -oyl, as shown in the table below.
Pages in category "Acyl chlorides" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. ...
However, for certain reactive acyl chlorides the activity must be reduced further, by the addition of a poison. Originally this was thioquinanthrene although thiourea [ 2 ] has also been used. [ 3 ] [ 4 ] Deactivation is required because the system must reduce the acyl chloride but not the subsequent aldehyde.
Acetyl chloride was first prepared in 1852 by French chemist Charles Gerhardt by treating potassium acetate with phosphoryl chloride. [4]Acetyl chloride is produced in the laboratory by the reaction of acetic acid with chlorodehydrating agents such as phosphorus trichloride (PCl 3), phosphorus pentachloride (PCl 5), sulfuryl chloride (SO 2 Cl 2), phosgene, or thionyl chloride (SOCl 2).
Water conditioners are formulations designed to be added to tap water before its use in an aquarium. [1] [2] If the tap water is chlorinated then a simple conditioner containing a dechlorinator may be used. These products contain sodium thiosulfate which reduces chlorine to chloride which is less harmful to fish.
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The reactivity of chloroformates and acyl chlorides are similar. Representative reactions are: Reaction with amines to form carbamates: [2] ROC(O)Cl + H 2 NR' → ROC(O)-N(H)R' + HCl. Reaction with alcohols to form carbonate esters: ROC(O)Cl + HOR' → ROC(O)-OR' + HCl. Reaction with carboxylic acids to form mixed anhydrides: