P,P-Diphenylphosphinic azide → HCID 46198601, compound

HRID 1966460Notes

Reaction equation

HRID 1966460 reaction equation
[CH2:1]([NH:8][C:9]1[CH:17]=[C:16]([N:18]2[CH2:23][CH2:22][N:21]([C:24](=[O:31])[C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[CH2:20][CH2:19]2)[CH:15]=[CH:14][C:10]=1[C:11]([OH:13])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:32][NH:33][CH3:34].C1COCC1.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)C=CC=CC=1>C1COCC1>[CH2:1]([NH:8][C:9]1[CH:17]=[C:16]([N:18]2[CH2:19][CH2:20][N:21]([C:24](=[O:31])[C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[CH2:22][CH2:23]2)[CH:15]=[CH:14][C:10]=1[C:11]([N:33]([CH3:34])[CH3:32])=[O:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 199401P,P-Diphenylphosphinic azideHCID 22320367Dimethylamine tetrahydrofuranHCID 584256602-(Benzylamino)-4-(4-benzoylpiperazin-1-yl)benzoic acid

Product 1

HCID 46198601HCID 46198601, compoundYield 60%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A solution of 2-(benzylamino)-4-(4-benzoylpiperazin-1-yl)benzoic acid (80 mg, 0.2 mmol), 2 M dimethylamine THF solution (0.38 ml, 0.78 mmol), tiethylamine (0.08 ml, 0.57 mmol) and diphenylphosphoryl azide (0.045 ml, 0.2 mmol) in 15 ml THF was stirred for 16 hours. The run was quenched with 1 ml water and all the solvents were evaporated under vacuum. 2-(benzylamino)-N,N-dimethyl-4-(4-benzoylpiperazin-1-yl)benzamide (50 mg, 60%) was obtained by flash column chromatograph (60% ethyl acetate in hexanes). 1H NMR (500 MHz, DMSO-d6) δ (ppm) 2.95 (d, 6H), 3.15-3.20 (s, br, 4H), 3.62 (s, br, 2H), 3.70 (s, br, 2H), 4.38 (d, 2H), 6.22 (d, J=2.2 Hz, 1H), 6.24 (dd, J=2.2, 8.3 Hz, 1H), 7.00 (dd, J=2.5, 8.4 Hz, 1H), 7.32-7.48 (m, 10H), 8.82 (s, 1H). 13C NMR (125 MHz, CDCl3): δ (ppm) 30.1, 30.8, 48.1, 48.9, 49.4, 99.5, 103.7, 111.1, 120.7, 126.6, 127.6, 127.7, 129.0, 129.1, 130.3, 130.5, 130.6, 136.0, 139.6, 149.5, 153.4, 170.8, 172.3.

Workup

  1. customThe run was quenched with 1 ml water and all the solvents
  2. customwere evaporated under vacuum

Sources & evidence

ORD record
ord-5f79604484a948de99e016fbf4bbe7c5
Source dataset
uspto-grants-2013_04
Patent number
US08420640B2

Reaction notes

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