4,4-Dimethyl-2-pentyne
- CAS NO.：999-78-0
- Empirical Formula: C7H12
- Molecular Weight: 96.17
- MDL number: MFCD00041613
- EINECS: 633-707-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-10 10:27:05
What is 4,4-Dimethyl-2-pentyne?
The Uses of 4,4-Dimethyl-2-pentyne
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.
Synthesis Reference(s)
Tetrahedron Letters, 22, p. 2443, 1981 DOI: 10.1016/S0040-4039(01)92928-4
Properties of 4,4-Dimethyl-2-pentyne
| Melting point: | -82.4°C |
| Boiling point: | 83°C |
| Density | 0.718 |
| refractive index | 1.4071 |
| Flash point: | -10°C |
| form | liquid |
| color | colorless |
| Water Solubility | Immiscible with water. |
| BRN | 1733540 |
| CAS DataBase Reference | 999-78-0 |
| NIST Chemistry Reference | 2-Pentyne, 4,4-dimethyl-(999-78-0) |
Safety information for 4,4-Dimethyl-2-pentyne
| Pictogram(s) |
 Flame Flammables GHS02  Health Hazard GHS08 |
| GHS Hazard Statements |
H225:Flammable liquids H304:Aspiration hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P243:Take precautionary measures against static discharge. P315:Get immediate medical advice/attention. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P403:Store in a well-ventilated place. |
Computed Descriptors for 4,4-Dimethyl-2-pentyne
New Products
2-Ethoxyphenol Methyl 2-methoxy-5-sulfamoylbenzoate 3,6-Dichloropyridazine Ethyl 2-chloro-2-(2-(4-methoxyphenyl)hydrazono)acetate 3,6-Dichloro-4-Isopropylpyridazine 2-[(2-Ethoxyphenoxy)methyl]oxirane 4-Morpholinoaniline 2-Chloromethyl-6-methyl-pyridine 1-Indanone tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate 2-Pyridinecarboxaldehdye 6-Methyl-2-pyridinemethanol 4-Bromo-2-fluoro-N-methylbenzamide 3-Azetidinecarboxylic acid N-(2-(4-((4-Fluorobenzyl)carbamoyl)-5-hydroxy-6-methoxypyrimidin-2-yl)propan-2-yl)-5-methyl-1,3,4-oxadiazole-2-carboxamide (R)-4-Boc-morpholine-3-carboxylic acid (Required high chiral purity NLT:99.5%) Tetrahydro-3-(2-methyl-2- nitropropyl)-2H-pyran-2-one 3-Bromo-2-fluorobenzonitrile Desoximetasone Boron Triiodide Nicotinic acid RAPAMYCIN Pentachlorobenzonitrile BudesonideRelated products of tetrahydrofuran
You may like
-
4,4-Dimethyl-2-pentyne CAS 999-78-0View Details
999-78-0 -
1589503?95?6 2-((2,6-Difluorobenzyl)(ethoxycarbonyl)amino)-4-((dimethylamino)methyl)-5-(4-nitrophenyl)thiophene-3-carboxylic acid 99%View Details
1589503?95?6 -
2-Chlorophenyl diphenyl chloromethane 99%View Details
42074-68-0 -
6-(chloromethyl)pteridine-2,4-diamine monohydrochloride 82778?08?3 99%View Details
82778?08?3 -
1,3-Dibromo-5-fluorobenzene 99%View Details
1435-51-2 -
729559-09-5 [N(E)]-N-Ethylidene-2-methyl-2-propanesulfinamide 99%View Details
729559-09-5 -
4-Isopropyl Thiophenol 4946-14-9 99%View Details
4946-14-9 -
2709271-25-8 99%View Details
2709271-25-8
Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.