반응 #167595

반응 방정식

Epichlorohydrin

potassium tert-butoxide

epichlorohydrin

2-ethylhexanol

1-chloro-3-(2-ethyl-hexyloxy)-propan-2-ol

1-chloro-3-(2-ethyl-hexyloxy)-propan-2-ol

→

2-ethylhexyl glycidyl ether

용매

tetrahydrofuran

반응 조건

후처리

1. 1
   기타To a flame dried
2. 2
   기타500 mL round bottomed flask equipped with an addition funnel
3. 3
   workup.DISTILLATIONis distilled under 0.2 mm Hg
4. 4
   workup.STIRRINGstirred at room temperature under an argon atmosphere
5. 5
   workup.STIRRINGthe suspension is stirred at room temperature for 18 hours
6. 6
   기타The reaction is then evaporated to dryness, residue
7. 7
   workup.DISSOLUTIONdissolved in hexanes
8. 8
   세척washed with water (100 mL)
9. 9
   기타The hexanes phase is separated
10. 10
    건조dried with Na2SO4
11. 11
    여과filtered
12. 12
    기타evaporated to dryness

실험 절차

To a flame dried, 500 mL round bottomed flask equipped with an addition funnel charged with epichlorohydrin (15.62 g, 0.17 moles), is added 2-ethylhexanol (16.5 g, 0.127 moles) and stannic chloride (0.20 g, 0.001 moles). The reaction is kept under an argon atmosphere and warmed to 90° C. using an oil bath. Epichlorohydrin is dripped into the stirring solution over 60 minutes followed by stirring at 90° C. for 18 hours. The reaction is fitted with a vacuum distillation head and 1-chloro-3-(2-ethyl-hexyloxy)-propan-2-ol is distilled under 0.2 mm Hg. The 1-chloro-3-(2-ethyl-hexyloxy)-propan-2-ol (4.46 g, 0.020 moles) is dissolved in tetrahydrofuran (50 mL) and stirred at room temperature under an argon atmosphere. To the stirring solution is added potassium tert-butoxide (2.52 g, 0.022 moles) and the suspension is stirred at room temperature for 18 hours. The reaction is then evaporated to dryness, residue dissolved in hexanes and washed with water (100 mL). The hexanes phase is separated, dried with Na2SO4, filtered and evaporated to dryness to yield the crude 2-ethylhexyl glycidyl ether, which can be further purified by vacuum distillation.

출처