4,4-Dimethyl-2-pentyne is an alkyne with the molecular formula C7H12, characterized by a triple bond between carbon atoms. This compound features a branched structure, with two methyl groups attached to the fourth carbon and a triple bond located between the second and third carbons. It is a colorless liquid at room temperature and has a distinct odor. The presence of the triple bond contributes to its reactivity, making it a useful intermediate in organic synthesis. 4,4-Dimethyl-2-pentyne is insoluble in water but soluble in organic solvents, which is typical for hydrocarbons. Its boiling point and melting point are influenced by the molecular structure and the presence of the triple bond. As with many alkynes, it can undergo various reactions, including hydrogenation, halogenation, and addition reactions, making it valuable in the production of more complex organic molecules. Safety precautions should be taken when handling this compound, as it may be flammable and potentially hazardous.

4,4-Dimethyl-2-pentyne

999-78-0: tert-Butyl methyl acetylene, 4,4-Dimethylpent-2-Yne

4,4-Dimethyl-2-pentyne is used in organometallic reactions for regioselectivity of its insertion into the Pd-C bond of cyclopalladated complexes. It is also used to prepare pyrimidine-dione by reacting with isocyanate in the presence of nickel/ N-heterocyclic carbene.  This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

CAS 999-78-0: 4,4-Dimethyl-2-pentyne

4,4-Dimethyl-2-pentyne

Ref: IN-DA003KFV

4,4-Dimethyl-2-pentyne, 97+%

Ref: 02-L10210

t-Butylmethylacetylene, min. 98%

Ref: 08-06-0150