Phenethylamine → Benzyl-[8-(4-benzyl-piperazin-1-yl)-quinolin-6-yl]-methyamine

HRID 992068Notes

Reaction equation

C([O-])([O-])=O.[Cs+].[Cs+].C1C=CC(P([C:20]2[C:29]([C:30]3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=[C:28]3[C:23](C=CC=C3)=[CH:22][CH:21]=2)C2C=CC=CC=2)=CC=1.[CH2:53]([N:60]1[CH2:65][CH2:64][N:63]([C:66]2[CH:67]=[C:68](Br)[CH:69]=[C:70]3[C:75]=2[N:74]=[CH:73][CH:72]=[CH:71]3)[CH2:62][CH2:61]1)[C:54]1[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=1.C([CH2:84][NH2:85])C1C=CC=CC=1>CCOCC.CC([O-])=O.CC([O-])=O.[Pd+2].C1(C)C=CC=CC=1>[CH2:30]([N:85]([C:68]1[CH:69]=[C:70]2[C:75](=[C:66]([N:63]3[CH2:64][CH2:65][N:60]([CH2:53][C:54]4[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=4)[CH2:61][CH2:62]3)[CH:67]=1)[N:74]=[CH:73][CH:72]=[CH:71]2)[CH3:84])[C:29]1[CH:28]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

Conditions

Temperature: 100 °C

Procedure

To an oven-dried 25 mL round bottom flask was added Cs2CO3 (1.55 g, 4.76 mmol), BINAP (300 mg, 3 mol %), Pd(OAc)2 (100 mg, 3 mol %) and kept under vacuum overnight. To this reaction vessel under a nitrogen atmosphere was added 8-(4-benzyl-piperazin-1-yl)-6-bromo-quinoline (1.3 g, 3.4 mmol), anhydrous toluene (12 mL) and benzylmethylamine (0.53 mL, 4.1 mmol). The reaction mixture was heated at 100° C. overnight. The cooled reaction mixture was diluted with Et2O (15 mL), filtered to remove solids, washed with EtOAc (10 mL) and concentrated. The resulting oil was purified by column chromatography (40% EtOAc/hexane) affording 830 mg (59%) of benzyl-[8-(4-benzyl-piperazin-1-yl)-quinolin-6-yl]-methyamine as an orange foam.

Workup

customkept under vacuum overnight
customThe cooled reaction mixture
filtrationfiltered
customto remove solids
washwashed with EtOAc (10 mL)
concentrationconcentrated
customThe resulting oil was purified by column chromatography (40% EtOAc/hexane)

Sources & evidence

ORD record: ord-4038174bfc7248bab6b4f3c11043b71d
Source dataset: uspto-grants-2002_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06465482B2

Reaction notes

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