Pyrrolidine → 1-(4-Pyrrolidin-1-yl-phenyl)-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl ester

HRID 1400046Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][CH:12]2[C:10]([C:14]3[CH:19]=[CH:18][C:17](Br)=[CH:16][CH:15]=3)([CH2:11]2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CC(C)([O-])C.[Na+].[NH:27]1[CH2:31][CH2:30][CH2:29][CH2:28]1>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH:12]2[C:10]([C:14]3[CH:19]=[CH:18][C:17]([N:27]4[CH2:31][CH2:30][CH2:29][CH2:28]4)=[CH:16][CH:15]=3)([CH2:11]2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of 1-(4-bromo-phenyl)-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl ester (Intermediate I, 200 mg, 0.592 mmol) in anhydrous toluene (15 mL) were added Pd2(dba)3 (1.35 mg, 0.002 mmol), BINAP (2.76 mg, 0.004 mmol), sodium tert-butoxide (68.20 mg, 0.710 mmol) and pyrrolidine (0.05 mL, 0.651 mmol) at r.t. and reaction mixture was stirred for 8 h at 80° C. Reaction mixture was then concentrated and the crude product was purified by column chromatography (silica gel, 0.4:9.6 EtOAc:Pet. ether) to afford the title compound as viscous liquid (140 mg, 72%).

Workup

customreaction mixture
customReaction mixture
concentrationwas then concentrated
customthe crude product was purified by column chromatography (silica gel, 0.4:9.6 EtOAc:Pet. ether)

Sources & evidence

ORD record: ord-4000c127dfb2409db1960eefe263f410
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08906913B2

Reaction notes

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