Hydrochloric Acid → HCID 59213282, compound

HRID 2244098Notes

Reaction equation

Cl[C:2]1[N:11]=[C:10]([N:12]([CH3:14])[CH3:13])[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([F:15])[CH:8]=2)[N:3]=1.C[Si]([N-:20][Si](C)(C)C)(C)C.[Li+].C1(P(C2CCCCC2)C2C=CC=CC=2C2C=CC=CC=2)CCCCC1.Cl>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1COCC1>[F:15][C:7]1[CH:8]=[C:9]2[C:4](=[CH:5][CH:6]=1)[N:3]=[C:2]([NH2:20])[N:11]=[C:10]2[N:12]([CH3:14])[CH3:13]

Participants

Conditions

Temperature: 65 °C

Procedure

A stirring mixture of (2-chloro-6-fluoro-quinazolin-4-yl)-dimethylamine (50 mg, 0.22 mmol), lithium bis(trimethylsilyl)amide (260 μL, 0.26 mmol, 1.0 M in hexanes), Pd2(dba)3 (20 mg, 0.022 mmol), 2-(dicyclohexyl)phosphinobiphenyl (19 mg, 0,053 mmol), and THF (1.0 mL) was heated in a sealed tube via microwave irradiation at 65° C. for 1.5 hours. 1.0 N aqueous HCl solution (3.0 mL) was added and the mixture was stirred at room temperature for 30 minutes. The mixture was partitioned between H2O and EtOAc. The organic portion was evaporated to dryness under reduced pressure. The obtained residue was purified via silica gel chromatography using 95% CH2Cl2/5% MeOH to obtain the desired amine as a tan solid (40 mg, 19.4 mmol, 88% yield). LC/MS (10-99%) M/Z 206.9 retention time 1.18 min.

Workup

customThe mixture was partitioned between H2O and EtOAc
customThe organic portion was evaporated to dryness under reduced pressure
customThe obtained residue was purified via silica gel chromatography

Sources & evidence

ORD record: ord-af23cbef26604c499cf1be16985ad7c2
Source dataset: uspto-grants-2010_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07678802B2

Reaction notes

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