Triphenylphosphine → 3-[(4-Methoxyphenyl)amino]-4-phenyl-1-(3,3,3-trifluoropropyl)-1H-pyrrole-2,5-dione

HRID 2113768Notes

Reaction equation

[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]2[C:11](=[O:22])[NH:12][C:13](=[O:21])[C:14]=2[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:5][CH:4]=1.[F:23][C:24]([F:29])([F:28])[CH2:25][CH2:26]O.N(C(OCC)=O)=NC(OCC)=O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1COCC1>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([NH:9][C:10]2[C:11](=[O:22])[N:12]([CH2:26][CH2:25][C:24]([F:29])([F:28])[F:23])[C:13](=[O:21])[C:14]=2[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:7][CH:8]=1

Participants

Conditions

Temperature: 130 °C

Procedure

To a solution of 3-[(4-methoxyphenyl)amino]-4-phenyl-1H-pyrrole-2,5-dione (0.17 mmol, 50 mg), 3,3,3-trifluoropropan-1-ol (0.19 mmol, 21 mg), diethyl azodicarboxylate (0.19 mmol, 33 mg) in dry THF (1 mL) was added triphenylphosphine (0.19 mmol, 49 mg) in dry THF (1 mL). The mixture was heated in a microwave reactor at 130° C. for six min. After cooling, the reaction mixture was purified by HPLC (95% 0.1M ammonium acetate buffer: 5% CH3CN→100% CH3CN) to give 51 mg (77%) of the title compound. 1H NMR (400 MHz, CDCl3) δ 7.27 (bs, 1H), 7.17-7.06 (m, 3H), 7.00-6.95 (m, 2H), 6.64-6.55 (m, 4H), 3.89 (t, J=7.3 Hz, 2H), 3.70 (s, 3H), 2.61-2.48 (m, 2H).

Workup

temperatureAfter cooling
customthe reaction mixture was purified by HPLC (95% 0.1M ammonium acetate buffer: 5% CH3CN→100% CH3CN)

Sources & evidence

ORD record: ord-2b033910d5274151ab2cab1a1c7ceeb5
Source dataset: uspto-grants-2008_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07432288B2

Reaction notes

Loading…