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Cyanoacetic acid is prepared by treatment of chloroacetate salts with sodium cyanide followed by acidification. [1] [2] Electrosynthesis by cathodic reduction of carbon dioxide and anodic oxidation of acetonitrile also affords cyanoacetic acid. [3] Cyanoacetic acid is used to do cyanoacetylation, first convenient method described by J. Slätt. [4]
Ethyl cyanoacetate is an organic compound that contains a carboxylate ester and a nitrile. It is a colourless [ 1 ] liquid with a pleasant odor. This material is useful as a starting material for synthesis due to its variety of functional groups and chemical reactivity.
Reaction with cyanide salts gives cyanoacetate NCCH 2 CO 2 Na. [3] Cyanoacetate is a precursor to malonic acid. Sodium chloroacetate is a common laboratory reagent in organic chemistry as illustrated by many entries in the book series Organic Syntheses. With bifunctional nucleophiles, sodium chloroacetate is a precursor to heterocycles. [4] [5]
Ethyl cyanohydroxyiminoacetate (oxyma) is the oxime of ethyl cyanoacetate and finds use as an additive for carbodiimides, such as dicyclohexylcarbodiimide (DCC) in peptide synthesis. It acts as a neutralizing reagent for the basicity or nucleophilicity of the DCC due to its pronounced acidity ( pKa 4.60) and suppresses base catalyzed side ...
Diethyl malonate is produced from the reaction of the sodium salt of chloroacetic acid with sodium cyanide, which produces the nitrile. This intermediate is then treated with ethanol in the presence of acid catalyst: ClCH 2 CO 2 Na + NaCN → NCCH 2 CO 2 Na + NaCl NCCH 2 CO 2 Na + 2 C 2 H 5 OH + 2 HCl → C 2 H 5 O 2 CCH 2 CO 2 C 2 H 5 + NH 4 ...
Sodium cyanate is isostructural with sodium fulminate, confirming the linear structure of the cyanate ion. [3] It is made industrially by heating a mixture of sodium carbonate and urea. [4] Na 2 CO 3 + 2 OC(NH 2) 2 → 2 NaNCO + CO 2 + 2 NH 3 + H 2 O. A similar reaction is used to make potassium cyanate. Cyanates are produced when cyanides are ...
Typically, alkyl nitriles are formed via S N 1 or S N 2-type cyanation with alkyl electrophiles. Illustrative is the synthesis of benzyl cyanide by the reaction of benzyl chloride and sodium cyanide. [1]
Heating the polymer causes depolymerization of the cured MCA, producing gaseous products which are a strong irritant to the lungs and eyes.With regard to occupational exposure to MCA, the National Institute for Occupational Safety and Health recommends workers do not exceed exposures over 2 ppm (8 mg/m 3) over an eight-hour workshift, or over 4 ppm (16 mg/m 3) over a short-term exposure.
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