Carbon Tetrachloride → HCID 11198434, compound

HRID 2240887Notes

Reaction equation

[C:1]([C:3]1[CH:8]=[CH:7][C:6]([N:9]([CH2:16][C:17]([F:20])([F:19])[F:18])[CH2:10][CH:11]([CH3:15])[C:12]([NH2:14])=O)=[CH:5][C:4]=1[C:21]([F:24])([F:23])[F:22])#[N:2].C(Cl)(Cl)(Cl)Cl.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>ClCCCl>[C:12]([CH:11]([CH3:15])[CH2:10][N:9]([CH2:16][C:17]([F:18])([F:19])[F:20])[C:6]1[CH:7]=[CH:8][C:3]([C:1]#[N:2])=[C:4]([C:21]([F:22])([F:24])[F:23])[CH:5]=1)#[N:14]

Participants

Conditions

Temperature: 87 °C

Procedure

A mixture of 3-[[4-cyano-3-(trifluoromethyl)phenyl](2,2,2-trifluoroethyl)amino]-2-methylpropanamide (0.044 mg, 0.12 mmol), CCl4 (1.5 mL), DCE (1.5 mL) and polymer-supported triphenyl phosphine (3 mmol/g, 0.089 g, 0.27 mmol) was heated at 87° C. for 2 h. Upon cooling, the resin was filtered off, washed thoroughly with CHCl3 and the filtrate concentrated in vacuo. The residue was purified by silica gel chromatography (5-40% EtOAc-hexane gradient) and the product crystallized from CH2Cl2-hexanes to give the title compound as a white solid (0.021 g, 52% yield): 1H NMR (400 MHz, CDCl3) δ 7.72 (d, J=8.8 Hz, 1H), 7.03 (d, J=2.6 Hz, 1H), 6.94 (dd, J=8.8, 2.6 Hz, 1H), 4.31-4.10 (m, 2H), 3.79-3.68 (m, 2H), 3.10-3.01 (m, 1H), 1.41 (d, J=7.2 Hz, 3H); MS (ES) m/z 336 (M+1).

Workup

temperatureUpon cooling
filtrationthe resin was filtered off
washwashed thoroughly with CHCl3
concentrationthe filtrate concentrated in vacuo
customThe residue was purified by silica gel chromatography (5-40% EtOAc-hexane gradient)
customthe product crystallized from CH2Cl2-hexanes

Sources & evidence

ORD record: ord-b9141204f79c4231b55c3d216dee8562
Source dataset: uspto-grants-2010_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07723385B2

Reaction notes

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