Dimethylacetamide
Encyclopedia
Dimethylacetamide is the organic compound
with the formula
CH3C(O)N(CH3)2. This colorless, water miscible, high boiling liquid is commonly used as a polar solvent
in organic chemistry. DMAc is miscible with most other solvents, although it is poorly soluble in aliphatic hydrocarbon
s.
The chemical reactions of dimethylacetamide are typical of N,N-disubstituted amide
s. It will hydrolyze
in the presence of acid
s:
Dimethylacetamide is useful as a medium for strong bases such as sodium hydroxide. Dimethylacetamide is commonly used as a solvent for fibers or in the adhesive
industry. It is also employed in the production of pharmaceuticals and plasticizer
s as a reaction medium.
Organic compound
An organic compound is any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of carbon-containing compounds such as carbides, carbonates, simple oxides of carbon, and cyanides, as well as the...
with the formula
Chemical formula
A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound....
CH3C(O)N(CH3)2. This colorless, water miscible, high boiling liquid is commonly used as a polar solvent
Solvent
A solvent is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute, resulting in a solution that is soluble in a certain volume of solvent at a specified temperature...
in organic chemistry. DMAc is miscible with most other solvents, although it is poorly soluble in aliphatic hydrocarbon
Hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons from which one hydrogen atom has been removed are functional groups, called hydrocarbyls....
s.
The chemical reactions of dimethylacetamide are typical of N,N-disubstituted amide
Amide
In chemistry, an amide is an organic compound that contains the functional group consisting of a carbonyl group linked to a nitrogen atom . The term refers both to a class of compounds and a functional group within those compounds. The term amide also refers to deprotonated form of ammonia or an...
s. It will hydrolyze
Hydrolysis
Hydrolysis is a chemical reaction during which molecules of water are split into hydrogen cations and hydroxide anions in the process of a chemical mechanism. It is the type of reaction that is used to break down certain polymers, especially those made by condensation polymerization...
in the presence of acid
Acid
An acid is a substance which reacts with a base. Commonly, acids can be identified as tasting sour, reacting with metals such as calcium, and bases like sodium carbonate. Aqueous acids have a pH of less than 7, where an acid of lower pH is typically stronger, and turn blue litmus paper red...
s:
- CH3CON(CH3)2 + H2O + HCl → CH3COOH + (CH3)2NH2+Cl-
Dimethylacetamide is useful as a medium for strong bases such as sodium hydroxide. Dimethylacetamide is commonly used as a solvent for fibers or in the adhesive
Adhesive
An adhesive, or glue, is a mixture in a liquid or semi-liquid state that adheres or bonds items together. Adhesives may come from either natural or synthetic sources. The types of materials that can be bonded are vast but they are especially useful for bonding thin materials...
industry. It is also employed in the production of pharmaceuticals and plasticizer
Plasticizer
Plasticizers or dispersants are additives that increase the plasticity or fluidity of the material to which they are added; these include plastics, cement, concrete, wallboard, and clay. Although the same compounds are often used for both plastics and concretes the desired effects and results are...
s as a reaction medium.