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141-82-2 - Malonic acid, 99% - Propanedioic acid - A11526 - Alfa Aesar

A11526 Malonic acid, 99%

Codice CAS
141-82-2
Sinonimi
Propanedioic acid

Dimensioni Prezzo ($) Quantità Disponibilità
100g 32,10
500g 91,50
2500g 352,00
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Malonic acid, 99%

MDL
MFCD00002707
EINECS
205-503-0

Proprietà chimiche

Formula
C3H4O4
Peso formula
104.06
Punto di fusione
132-136° dec.
Punto di infiammabilità
157°(314°F)
Densità
1.62
Solubilità
Soluble in cold water.

Applicazioni

Malonic acid is acts as a building block in organic synthesis. It is also useful as a precursor for polyesters and alkyd resins, which is used in coating applications, thereby protecting against UV light, corrosion and oxidation. It acts as a cross linker in the coating industry and surgical adhesive. It finds application in the production of specialty chemicals, flavors and fragrances, polymer cross linkers and pharmaceuticals.

Note

Incompatible with bases, oxidizing agents and reducing agents.

Letteratura

Knoevenagel condensation with aldehydes yields substituted acrylic (e.g. cinnamic) acids; review: Org. React., 15, 204 (1967). For an example of the Doebner modification, using pyridine as solvent/base, see: Org. Synth. Coll., 3, 425 (1955); a catalytic amount of piperidine often gives superior results; see, e.g.: Org. Synth. Coll., 4, 327 (1963).

Bew, S. P.; Stephenson, R.; Rouden, J.; Ashford, P. A.; Bourane, M.; Charvet, A.; Dalstein, V. M. D.; Jauseau, R.; Gipson, G. D. H.; Lozano, L. A. M. Bioinspired, Base- and Metal-Free, Mild Decarboxylative Aldol Activation of Malonic Acid Half Thioesters Under Phase-Transfer Reaction Conditions. Adv. Synth. Catal. 2015, 357 (6), 1245-1257.

Nakamura, S.; Sano, M.; Toda, A.; Nakane, D.; Masuda, H. Organocatalytic Enantioselective Decarboxylative Reaction of Malonic Acid Half Thioesters with Cyclic N-Sulfonyl Ketimines by Using N-Heteroarenesulfonyl Cinchona Alkaloid Amides. Chem. Eur. J. 2015, 21 (10), 3929-3932.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H315-H318-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Dichiarazioni precauzionali: P261-P280a-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,5710
Beilstein
1751370
Codice tariffe armonizzato
2917.19
TSCA
Yes
RTECS
OO0175000

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