100760-04-1
(S)-(-)-1-(4-bromophenyl)-1-ethanol
CAS: 100760-04-1
Molecular Formula: C8H9BrO
100760-04-1 - Names and Identifiers
| Name | (S)-(-)-1-(4-bromophenyl)-1-ethanol |
| Synonyms | (S)-1-(4-Bromophenyl)Ethanol (S)-1-(4-BROMOPHENYL)ETHANOL (1S)-1-(4-Bromophenyl)Ethanol (S)-4-Bromo-α-methylbenzyl alcohol (S)-(-)-1-(4-bromophenyl)-1-ethanol (S)-4-BROMO-ALPHA-METHYLBENZYL ALCOHOL GS)-4-BROMO-ALPHA-METHYLBENZYL ALCOHOL Gs)-4-Bromo-Alpha-Methylbenzyl Alcohol (S)-4-Bromo-Alpha-Methylbenzyl Alcohol (S)-1-(4-Bromophenyl)ethanol, (S)-4μ-Bromo-1-phenylethanol |
| CAS | 100760-04-1 |
| EINECS | 226-389-9 |
| InChI | InChI=1/C8H9BrO/c1-6(10)7-2-4-8(9)5-3-7/h2-6,10H,1H3/t6-/m0/s1 |
| InChIKey | XTDTYSBVMBQIBT-LURJTMIESA-N |
100760-04-1 - Physico-chemical Properties
| Molecular Formula | C8H9BrO |
| Molar Mass | 201.06 |
| Density | 1.322g/mLat 25°C |
| Boling Point | 116 °C(Press: 5.2 Torr) |
| Flash Point | 110°C |
| Vapor Presure | 0.00956mmHg at 25°C |
| Appearance | Transparent colorless liquid |
| pKa | 14.22±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.570 |
100760-04-1 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| HS Code | 29062990 |
100760-04-1 - Reference Information
| introduction | pyrethroids are a kind of important insecticides, which have the characteristics of high efficiency, broad spectrum, low toxicity and biodegradability, so they are widely used in agriculture and health pest control. Sevofluthrin (tefluthrin) is an important pyrethroid insecticide. The main application field is soil insecticidal. |
| Application | (S)-4-bromo-alpha-methylbenzyl alcohol can be used not only to synthesize heptefluthrin, but also to synthesize other pyrethroid pesticides Important intermediates, such as methyl chlorination, oxidation, esterification and other reactions in the para position, can produce a series of pyrethroid compounds. (S)-4-bromo-α-methylbenzyl alcohol is a building block for photochemical activity and photophysical phthalocyanine organic synthesis. |
| Preparation | (S)-4-bromo-alpha-methylbenzyl alcohol is prepared from tetrafluorobenzene by methylation, carboxylation and reduction. 2,3,5,6-tetrafluorobenzene and n-LiBu are reacted with TIHF as the solvent, under the protection of argon, and then reacted with methyl iodide to produce 2,3,5,6-tetrafluorotoluene; then ether is used as the solvent, Reaction with n-LiBu and CO2 to obtain 4-methyl -2,3,5, 6-tetrafluorobenzoic acid: then under the protection of argon, diethyl ether is the solvent and LiAH is reacted to obtain (S)-4-bromo-alpha-methylbenzyl alcohol. The raw material tetrafluorobenzene used in this route is more expensive, and the reagents used in the synthesis such as methyl iodide and lithium aluminum hydride are also very expensive; and the reaction conditions are more stringent, requiring low temperature operation of -45 ℃ or even -70 ℃. The total yield of the reaction is very low, less than 1%, which is difficult to produce industrially. |
Last Update：2024-04-09 21:54:55
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View History
100760-04-1
617-90-3
2972-52-3
Iodomethane
1565-75-9
Carbon nanotubes
100-63-0
135-79-5
64987-16-2
Potassium cyanide K(CN)
617-90-3
2972-52-3
Iodomethane
1565-75-9
Carbon nanotubes
100-63-0
135-79-5
64987-16-2
Potassium cyanide K(CN)