4-Isopropylpyridine
4-isopropylpyridine
CAS: 696-30-0
Molecular Formula: C8H11N
4-Isopropylpyridine - Names and Identifiers
| Name | 4-isopropylpyridine |
| Synonyms | Isopropylpyridine 4-Isopropylpyridine 4-ISOPROPYLPYRIDINE 4-isopropylpyridine 4-(propan-2-yl)pyridine gamma-Isopropylpyridine 4-(1-methylethyl)-pyridin 4-(1-Methylethyl)pyridine 4-(1-methylethyl)-pyridine Pyridine, 4-(1-methylethyl)- |
| CAS | 696-30-0 |
| EINECS | 211-794-5 |
| InChI | InChI=1/C8H11N/c1-7(2)8-3-5-9-6-4-8/h3-7H,1-2H3 |
4-Isopropylpyridine - Physico-chemical Properties
| Molecular Formula | C8H11N |
| Molar Mass | 121.18 |
| Density | 0,93 g/cm3 |
| Melting Point | -54.9°C |
| Boling Point | 178 °C |
| Flash Point | 66°C |
| Vapor Presure | 1.421mmHg at 25°C |
| pKa | pK1:6.02(＋1) (25°C) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.4940 to 1.4970 |
| MDL | MFCD00039719 |
4-Isopropylpyridine - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
4-Isopropylpyridine - Reference Information
| Use | 4-isopropylpyridine is used as a reagent for the synthesis of bis (alkylpyridine), which is antifungal and cytotoxic. |
| Preparation method | The preparation of 4-isopropylpyridine is as follows: 1) At 0°C, to a mixture of 5.1g(14.3mmol)Ph3PhCH3Br in 25 mLHF, 11.0mLn-BuLi(1.6M hexane solution) is added dropwise within 20 minutes. After 1 hour, 1.5g(12.8mmol) of 1-(pyridine-4-yl) ethanone was added to 20mL of THF. The mixture was stirred at 0°C for 1 hour, then at room temperature for 50 minutes. The mixture was filtered through a Brinell funnel. Saturated NH4Cl and H2O were added to separate the layers. The organic layer was washed with brine, dried with Na2SO4, filtered and concentrated. Purified by rapid silica gel chromatography (54% EtOAc/hexane) to obtain isopropenylpyridine, which is a light yellow liquid. 2) At room temperature, stir a mixture of 4-(prop-1-en-2-yl) pyridine and 342mg 20% Pd(OH)2 in 15mLEtOAc and 10mLMeOH under an H2 balloon. After 24 hours, 305mg of 20% Pd(OH) was added for 2,6 hours, and the mixture was filtered through diatomite, filtered and concentrated. The crude product was dissolved in 15mLMeOH and 512mg 20% Pd(OH)2 was added. The mixture was stirred in a H2 balloon for 11.5 h at room temperature, filtered through diatomaceous earth, and concentrated to give 4-isopropylpyridine. |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-10 22:29:15
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View History
4-Isopropylpyridine
Benzaldehyde, 6-chloro-2,3-difluoro-4-(trifluoromethyl)-
Primanox3114
SPM 927
酸性粒子元NBL
2-Isobutyl-3-methoxypyrazine
(2-FLUORO-PHENYL)-OXO-ACETONITRILE
1142189-06-7
合同5-N-(2-CHLOROPYRIMIDIN-4-Y)
HCL
Benzaldehyde, 6-chloro-2,3-difluoro-4-(trifluoromethyl)-
Primanox3114
SPM 927
酸性粒子元NBL
2-Isobutyl-3-methoxypyrazine
(2-FLUORO-PHENYL)-OXO-ACETONITRILE
1142189-06-7
合同5-N-(2-CHLOROPYRIMIDIN-4-Y)
HCL