反应详情

To a five neck, two liter round bottom flask equipped with an addition funnel, thermometer, nitrogen dispersant tube, mechanical stirrer, and a decanting head with a water-cooled condenser were added 220 grams (1.00 mole) of nonylphenol and 250 milliliters of cyclohexane. The solution was then heated to reflux and 2.8 grams (1.3 wt. % based on nonylphenol) of potassium hydroxide in 10 milliliters of water was slowly added to the flask. After essentially all the water was recovered in the decanting head (10 milliliters+1 milliliter formed), 250.7 grams (0.91 mole) of nonylphenyl glycidyl ether as added dropwise. During the addition of the glycidyl ether, the reaction temperature was maintained between 60° and 80° C. After the addition was complete, the solution was refluxed for four hours. The contents of the flask were then washed with a five percent aqueous solution of phosphoric acid, and the organic layer was separated from the water layer and washed twice with deionized water. The reaction mixture was then placed in a one liter round bottom flask, and the remaining cyclohexane and unreacted nonylphenol were recovered by distillation, first at atmospheric pressure, then under vacuum at 0.2 mm Hg. The kettle temperature was not allowed to exceed 180° C. during the distillation to prevent discoloration of the product. The concentrated solution was then refiltered to give 425 grams of a pale-yellow liquid. End-group MW analysis gave a molecular weight of 506.8 (theoretical MW=496.8). Ir and nmr spectra were identical to previously recorded spectra for the compound.

1. customTo a five neck, two liter round bottom flask equipped with an addition funnel
2. temperatureThe solution was then heated
3. temperatureto reflux
4. additionas added dropwise
5. temperaturethe reaction temperature was maintained between 60° and 80° C
6. additionAfter the addition
7. temperaturethe solution was refluxed for four hours
8. washThe contents of the flask were then washed with a five percent aqueous solution of phosphoric acid
9. customthe organic layer was separated from the water layer
10. washwashed twice with deionized water
11. customThe reaction mixture was then placed in a one liter round bottom flask
12. distillationthe remaining cyclohexane and unreacted nonylphenol were recovered by distillation, first at atmospheric pressure
13. distillationto exceed 180° C. during the distillation