Reaktion #357620

Reaktionsgleichung

2-Ethylaminoethanol

3-Chloro-3-methyl-1-butyne

→

2-[(1,1-Dimethyl-prop-2-ynyl)-ethyl-amino]-ethanol

Lösungsmittel

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe solvent was removed
2. 2
   workup.DISSOLUTIONthe residue dissolved in ether/2M HCl
3. 3
   SonstigeThe phases were separated
4. 4
   workup.ADDITIONafter addition of Na2CO3 to the aqueous phase (pH9), it
5. 5
   Extraktionwas extracted with ether
6. 6
   TrocknenThe ether phase was dried over Na2SO4
7. 7
   Einengenconcentrated
8. 8
   workup.DISTILLATIONDistillation by Kugelrohr

Vorschrift

To 14.3 ml (146.3 mmol) 2-Ethylaminoethanol in 60 ml THF were added 362 mg (3.7 mmol) CuCl, followed by 7.5 g (73.1 mmol) 3-Chloro-3-methyl-1-butyne. The solution was stirred at RT for 2 h, the solvent was removed and the residue dissolved in ether/2M HCl. The phases were separated and after addition of Na2CO3 to the aqueous phase (pH9), it was extracted with ether. The ether phase was dried over Na2SO4 and concentrated. Distillation by Kugelrohr yielded 2-[(1,1-Dimethyl-prop-2-ynyl)-ethyl-amino]-ethanol as colorless oil, MS: 155 (M).

Quelle