O-methoxybenzaldehyde
Cov qauv tsim qauv
Suav lub npe:o-methoxybenzaldehyde
Lwm lub npe:o-methoxybenzaldehyde;2-methoxybenzaldehyde;2-anisaldehyde;o-anisaldehyde;o-methoxybenzaldehyde;salicaldehyde methyl ether;o-anisaldehyde;salicylaldehyde methyl ether
Molecular formula:C8H8O2
Molecular Luj:136.15 Nws
Numbering System
CAS Nr .:135-02-4 ib
EINECS:205-171-7 ib
HS code:29124900 ib
Technical Parameters
Cov tsos: xim tsis muaj xim prismatic siv lead ua
Purity: ≥98.0%
Melting point: 39 ° C
Kub taw tes: 238 ° C, 70-75 ° C / 0.2kPa
Relative ceev: 1.1326 (20/4 ° C)
Refractive Index: 1.5597
Lub teeb taw tes: 117 ° C
Solubility: soluble hauv cawv, ether, benzene, insoluble hauv dej
Txoj kev tsim khoom
Los ntawm salicylaldehyde los ntawm methylation cov tshuaj tiv thaiv nrog dimethyl sulfate.Sib tov 3kg ntawm sodium hydroxide rau hauv 30% aqueous tov, ntxiv 12.2kg salicylaldehyde thiab 80L dej hauv qab nplawm, thiab kub kom npau npau.Maj mam ntxiv 12.9kg ntawm dimethyl sulfate, khaws cov tshuaj tiv thaiv refluxed rau li 3h tom qab ntxiv, txuas ntxiv reflux rau 2-3h tom qab tshuaj, txias cov roj txheej, ntxuav nrog 5% sodium hydroxide tov, thiab tom qab ntawd ntxuav nrog dej rau pH 8. , ntxiv Anhydrous potassium carbonate yog qhuav.Tom qab lim tawm cov desiccant, distillation nyob rau hauv lub siab txo, sau cov distillate ntawm 120 ° C (2.0kPa), uas yog o-methoxybenzaldehyde.Cov tshuaj tiv thaiv methylation kuj tuaj yeem nqa tawm hauv cov kuab tshuaj toluene, nrog cov txiaj ntsig ntawm 60%.
Lub hom phiaj
Methoxybenzaldehyde yog ib qho nruab nrab hauv cov organic synthesis, siv hauv kev tsim cov txuj lom thiab tshuaj.o-methoxybenformaldehyde tuaj yeem siv rau hauv kev tsim khoom.O-Methoxybenzaldehyde tuaj yeem siv los tsim cov tshuaj adrenergic Chuankening.
