Reaktion #41273

Reaktionsgleichung

mesylate

Methanesulfonic acid 3-(anthracen-9-ylmethyl-ethyl-amino)-propyl ester

3-amino-propanol

→

18

Ausbeute 65.0%

3-[3-(Anthracen-9-ylmethyl-ethyl-amino)-propylamino]-propan-1-ol

Ausbeute 65.0%

Lösungsmittel

acetonitrile

Reaktionsbedingungen

Aufarbeitung

1. 1
   EinengenAfter the confirmation of the disappearance of the mesylate by TLC, the solution was concentrated under reduced pressure
2. 2
   workup.DISSOLUTIONThe residue was dissolved in CH2Cl2 (20 mL)
3. 3
   Waschenwashed three times with aqueous sodium carbonate
4. 4
   SonstigeThe organic layer was separated
5. 5
   Trocknendried with anhydrous Na2SO4
6. 6
   Filtrationfiltered
7. 7
   Einengenconcentrated under vacuum

Vorschrift

The mesylate 17 (384 mg, 1.04 mmol) and 3-amino-propanol (392 mg, 5.25 mmol) were dissolved in acetonitrile (20 mL). The mixture was then stirred at 75° C. under a N2 atmosphere overnight. After the confirmation of the disappearance of the mesylate by TLC, the solution was concentrated under reduced pressure. The residue was dissolved in CH2Cl2 (20 mL) and washed three times with aqueous sodium carbonate. The organic layer was separated, dried with anhydrous Na2SO4, filtered and concentrated under vacuum. Flash column chromatography of the residue gave 18 as a light yellow oil. Yield 65%; Rf=0.35 (1:6:83 NH4OH:MeOH:CH2Cl2); 1H NMR (CDCl3) δ 8.32 (d, 2H), 8.23 (s, 1H), 7.83 (d, 2H), 7.37 (m, 2H), 7.30 (m, 2H), 4.28 (s, 2H), 3.48 (t, 2H), 2.56 (q, 2H), 2.30 (t, 2H), 2.12 (t, 2H), 2.06 (t, 2H), 1.36 (q, 2H), 1.21 (q, 2H), 1.09 (t, 3H); 13C NMR (CDCl3) δ 131.3, 131.2, 130.5, 129.3, 129.0, 127.3, 125.5, 125.3, 124.8, 124.8, 63.8, 50.8, 50.5, 49.5, 48.3, 47.7, 30.5, 26.6, 11.7. HRMS (FAB) m/z calcd. for C23H30N2O (M+H)+ 351.2431; found 351.2430.

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