Reaktion #90520

Reaktionsgleichung

41

(E)-2-(3-bromo-2,6-difluorobenzylidene)-6-methoxy-5-morpholino-2,3-dihydro-1H-inden-1-one

→

crude compound 42

2, 6-difluorobenzyl-6-methoxy-5-morpholino-2, 3-dihydro-1H-inden-1-one

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationThe reaction was filtered through elite bed
2. 2
   Waschenwashed with excess methanol
3. 3
   EinengenThe organic layer was concentrated

Vorschrift

The 41 (40 mg, 0.088 mmol) was dissolved in methanol 15 mL and added Pd/C 20 mg and stirred under hydrogen balloon for 6 h. The reaction was filtered through elite bed and washed with excess methanol. The organic layer was concentrated to get the crude compound 42, which was purified by flash chromatography using 100-200 mesh silica gel. The compound 2-(2,6-difluorobenzyl)-6-methoxy-5-morpholino-2,3-dihydro-1H-inden-1-one 42 was eluted as des-brominated compound at 26% ethyl acetate in hexane as half white coloured solid. 1HNMR (400 MHz, CDCl3) δ ppm 7.17 (m, 2H), 6.89 (m, 3H), 3.89 (m, 7H), 3.35 (m, 1H), 3.19 (m, 4H), 3.06 (m, 2H), 2.76 (m, 2H); MS (ESI) m/z 374.0 (M+H).

Quelle