Name | 3,5-Di-tert-butyl-2-hydroxybenzaldehyde |
Synonyms | 3,5-DI-TBUTYLSALICYLALDEHYDE 3,5- di Ding JishuiYang Quan 3,5-Di-tert-butylsalicylaldehyde 3,5-di-tert-butyl salicylaldehyde 3, 5-2 tertiary butyl salicylaldehyde 2-Hydroxy-3,5-di-tert-butylbenzaldehyde 3,5-Di-tert-butyl-2-hydroxybenzaldehyde 3,5-DI-TERT-BUTYL-2-HYDROXYBENZALDEHYDE 3,5-Bis(1,1-dimethylethyl)-2-hydroxy-benzaldehyde |
CAS | 37942-07-7 |
EINECS | 629-676-0 |
InChI | InChI=1/C15H22O2/c1-14(2,3)11-7-10(9-16)13(17)12(8-11)15(4,5)6/h7-9,17H,1-6H3 |
InChIKey | RRIQVLZDOZPJTH-UHFFFAOYSA-N |
Molecular Formula | C15H22O2 |
Molar Mass | 234.33 |
Density | 1.006±0.06 g/cm3(Predicted) |
Melting Point | 59-61°C(lit.) |
Boling Point | 277.6±35.0 °C(Predicted) |
Flash Point | 116.1°C |
Solubility | Soluble in DMSO and methanol. |
Vapor Presure | 0.00266mmHg at 25°C |
Appearance | Solid |
Color | Off-White to Light Yellow |
BRN | 1877810 |
pKa | 9.78±0.23(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Sensitive | Air Sensitive |
Refractive Index | 1.527 |
MDL | MFCD00191998 |
Physical and Chemical Properties | The product is light yellow to yellow crystalline powder. melting point 58-60°C. |
Use | A Schiff base ligand was prepared for use in the enantioselective copper-catalyzed reaction of phenylacetylene to imine. It is also used to prepare chiral oxazolidine. |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - 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 - Wear suitable protective clothing. |
WGK Germany | 3 |
HS Code | 29124990 |
Hazard Note | Irritant |
introduction | 3, 5-di-tert-butylsalicylaldehyde is an organic intermediate, which can be prepared from 2, 4-di-tert-butylphenol through one-step reaction. It has been reported that it can be used to prepare dimethyl ethylenediamine tert-butylphenol and (S,S)-salenCo (II) catalyst. |
apply | 500mL eggplant bottle to add 2,4-di-tert-butylphenol 50mmol, paraformaldehyde 500mmol, sodium hydroxide 150mmol, triethylamine 100mmol, tetrahydrofuran 100mL, heating reflux stirring reaction at 90 ℃, TLC tracking the reaction process, after the reaction to room temperature. Add hydrochloric acid to the reaction solution, stir, until the reaction solution is clarified and stratified, the aqueous phase is extracted with ethyl acetate, the organic phase is combined, and the saturated salt water is washed, anhydrous sodium sulfate is dried, filtered, and the solvent is removed. Column chromatography (n-hexane: ethyl acetate = 30:1) purification, the product is 10.56g, and the yield is 90.16%. |
preparation | 500mL eggplant bottle was added with 2,4-50mmol di-tert-butylphenol, 500mmol paraformaldehyde, 150mmol sodium hydroxide, 100mmol triethylamine, 100mL tetrahydrofuran, heated reflux stirring reaction at 90 ℃, TLC followed the reaction process, and dropped to room temperature after the reaction was completed. Add hydrochloric acid to the reaction solution, stir, until the reaction solution is clarified and stratified, the aqueous phase is extracted with ethyl acetate, the organic phase is combined, and the saturated salt water is washed, anhydrous sodium sulfate is dried, filtered, and the solvent is removed. Column chromatography (n-hexane: ethyl acetate = 30:1) purification, the product is 10.56g, and the yield is 90.16%. |
Use | Prepare a Schiff base ligand for the enantioselective copper-catalyzed reaction of phenylacetylene to imine. It is also used to prepare chiral oxazolidine. |