Ethyl 1-benzylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate → Ethyl hexahydropyrrolo[3,4-B]pyrrole-5(1H)-carboxylate
Reaction equation
C([N:8]1[CH2:15][CH2:14][CH:13]2[CH:9]1[CH2:10][N:11]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH2:12]2)C1C=CC=CC=1>C(O)C.[Pd]>[CH:9]12[CH2:10][N:11]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH2:12][CH:13]1[CH2:14][CH2:15][NH:8]2Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
21.2 g (77.3 mmol) of ethyl 2-benzyl-2,7-diazabicyclo[3.3.0]octane-7-carboxylate (Example Ae) in 400 ml of ethanol are hydrogenated on 3 g of palladium/active carbon (10% Pd) at 100° C. and 100 bar. The catalyst is filtered off, the filtrate is concentrated, and the residue is distilled.
Workup
- filtrationThe catalyst is filtered off
- concentrationthe filtrate is concentrated
- distillationthe residue is distilled
Sources & evidence
- ORD record
- ord-27f4dff4da604a05ab4932515d2d704c
- Source dataset
- uspto-grants-1994_02
- Patent number
- US05284855
Reaction notes
Loading…