HRID271147

反应详情

EQUATION

反应方程式

HRID 271147 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

CONDITIONS

反应条件

温度
0 °C

PROCEDURE

实验过程

A solution of 2,6-dimethyl phenol (20 g, 0.163 mol) in ethanol (100 mL) at room temperature was treated with dimethylamine (19 mL of a 40% solution of dimethylamine in water, 0.163 mol) followed by formaldehyde (13.5 mL of a 37% solution of formaldehyde in water, 0.163 mol). The reaction was heated to reflux for 12 h. The reaction mixture was cooled to 0° C. in an ice bath, diluted with water (100 mL) and brought to pH=5 with a 1N aqueous hydrochloric acid solution. The water layer was extracted with diethyl ether (2×150 mL). The aqueous layer was brought to pH=8 by the addition of a 1N aqueous sodium hydroxide solution, cooled to 0° C. in an ice bath and was extracted with diethyl ether (3×200 mL). The organics were washed with a saturated aqueous sodium chloride solution, dried with magnesium sulfate, filtered and concentrated under vacuum. The resulting oil was dried under high vacuum overnight to afford 4-dimethylaminomethyl-2,6-dimethyl-phenol as an off-white solid (13.42 g, 46%); EI(+)-HRMS m/z calcd for C11H17NO (M+) 179.1310, found 179.1308. Molecular Weight=179.2642; Exact Mass=179.1310

WORKUP

后处理

  1. temperatureThe reaction was heated
  2. temperatureto reflux for 12 h
  3. extractionThe water layer was extracted with diethyl ether (2×150 mL)
  4. additionThe aqueous layer was brought to pH=8 by the addition of a 1N aqueous sodium hydroxide solution
  5. temperaturecooled to 0° C. in an ice bath
  6. extractionwas extracted with diethyl ether (3×200 mL)
  7. washThe organics were washed with a saturated aqueous sodium chloride solution
  8. dry with materialdried with magnesium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated under vacuum
  11. customThe resulting oil was dried under high vacuum overnight