1-(2-Fluorophenyl)piperazine → 1-(3-(1-tert-butyl-5-(4-methoxyphenyl)-1H-pyrazol-3-yl)propyl)-4-(2-fluorophenyl)piperazine

HRID 387031Notes

Reaction equation

[C:1]([N:5]1[C:9]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=2)=[CH:8][C:7]([CH2:18][CH2:19][CH:20]=O)=[N:6]1)([CH3:4])([CH3:3])[CH3:2].[F:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[N:29]1[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]1.CCN(C(C)C)C(C)C.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>>[C:1]([N:5]1[C:9]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=2)=[CH:8][C:7]([CH2:18][CH2:19][CH2:20][N:32]2[CH2:31][CH2:30][N:29]([C:24]3[CH:25]=[CH:26][CH:27]=[CH:28][C:23]=3[F:22])[CH2:34][CH2:33]2)=[N:6]1)([CH3:3])([CH3:2])[CH3:4]

Participants

Reactant 4

HCID 705291-(2-Fluorophenyl)piperazine

HCID 81531Diisopropylethylamine

HCID 5049666Sodium triacetoxyborohydride

HCID 866399193-(1-tert-butyl-5-(4-methoxyphenyl)-1H-pyrazol-3-yl)propanal

Product 1

HCID 250658751-(3-(1-tert-butyl-5-(4-methoxyphenyl)-1H-pyrazol-3-yl)propyl)-4-(2-fluorophenyl)piperazine

Procedure

132 mg (91%) of target compound was obtained by using a method same as in Example 1 by using 3-(1-tert-butyl-5-(4-methoxyphenyl)-1H-pyrazol-3-yl)propanal (85 mg, 0.297 mmol), 1-(2-fluorophenyl)piperazine (54 mg, 0.297 mmol), DIPEA (0.078 mL, 0.446 mmol) and NaBH(OAc)3 (189 mg, 0.891 mmol).

Workup

custom132 mg (91%) of target compound was obtained

Sources & evidence

ORD record: ord-511f52da14e14427a6991473b55c38e5
Source dataset: uspto-grants-2013_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08372844B2

Reaction notes

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