Name | 3-Phenoxytoluene |
Synonyms | 3-Phenoxytoluene Phenyl m-tolyl ether Ether, phenyl m-tolyl 3-Methyldiphenyl ether Permethrin EP Impurity A 1-methyl-3-phenoxy-benzen 1-methyl-3-phenoxybenzene 1-Methyl-3-phenoxybenzene 3-methylphenylphenylether 1-methyl-3-phenoxy-Benzene Benzene,1-methyl-3-phenoxy- 3-Methylphenyl phenyl ether |
CAS | 3586-14-9 |
EINECS | 222-716-4 |
InChI | InChI=1/C13H12O/c1-11-6-5-9-13(10-11)14-12-7-3-2-4-8-12/h2-10H,1H3 |
Molecular Formula | C13H12O |
Molar Mass | 184.23 |
Density | 1.051 g/mL at 25 °C (lit.) |
Melting Point | 160 °C |
Boling Point | 271-273 °C (lit.) |
Flash Point | >110°C |
Vapor Presure | 0.0122mmHg at 25°C |
Appearance | Liquid |
Color | Clear very slightly yellow |
BRN | 2045714 |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | n20/D 1.573(lit.) |
MDL | MFCD00008531 |
Physical and Chemical Properties | This product is a colorless liquid, B. p.271 ~ 273 ℃,n20D 1.5730, relative density of 1.051, insoluble in water, soluble in benzene, toluene, acetone and other organic solvents. |
Use | As a pesticide pyrethroid Intermediate |
Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
UN IDs | UN 3082 9/PG III |
WGK Germany | 2 |
RTECS | DA6142000 |
TSCA | Yes |
HS Code | 29093090 |
Hazard Class | 9 |
Packing Group | III |
Downstream Products | 3-Phenoxybenzaldehyde |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | m-phenoxytoluene is a key intermediate for the synthesis of pyrethroids, mainly used to produce m-phenoxybenzaldehyde. this product is used as an intermediate of pyrethroid insecticide, pressure sensitive dye and perfume. Used as pesticide pyrethroid intermediate |
Production method | After m-cresol and potassium hydroxide solution are prepared into phenol potassium, they are catalytically condensed with chlorobenzene to generate 3-phenoxytoluene. The condensation product is treated with acid and alkali to remove residual impurities such as potassium m-cresol and m-cresol to obtain a finished product with purity ≥ 98%. The yield is about 82% based on m-cresol. the industrial production method is to use copper sulfate or cuprous chloride as catalyst, mix m-cresol, chlorobenzene and potassium hydroxide with molar ratios of 1.95: 1.25: 1 respectively, heat reflux dehydration, reaction temperature rises to 180 ℃ after about 10h, stop the reaction, carry out acid washing and vacuum distillation, recover m-cresol and chlorobenzene respectively, and finally obtain m-phenoxytoluene with a yield of more than 75%. |