Cyanamide → 2-(4-{[3-Chloro-5-(trifluoromethyl)phenyl]oxy}phenyl)ethyl imidocarbamate

HRID 705917Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[C:4]([O:12][C:13]2[CH:18]=[CH:17][C:16]([CH2:19][CH2:20][OH:21])=[CH:15][CH:14]=2)[CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=1.[N:22]#[C:23][NH2:24].OS(C(F)(F)F)(=O)=O>C1COCC1>[C:23](=[NH:22])([O:21][CH2:20][CH2:19][C:16]1[CH:17]=[CH:18][C:13]([O:12][C:4]2[CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=[C:2]([Cl:1])[CH:3]=2)=[CH:14][CH:15]=1)[NH2:24]

Participants

Conditions

Temperature: 55 °C

Procedure

To a solution of 2-(4-{[3-chloro-5-(trifluoromethyl)phenyl]oxy}phenyl)ethanol (2 g, 6.32 mmol) and cyanamide (0.4 g, 9.51 mmol) in dry THF (20 mL) under nitrogen was added triflic acid (0.8 mL, 9.01 mmol). The mixture was heated at 55° C. for 4 h. Purification via reverse phase flash chromatography afforded the title compound (2.1 g, 4.45 mmol, 70.5% yield) as a brown oil. LCMS: rt=2.95 min, [M+H+]=359

Workup

customPurification via reverse phase flash chromatography

Sources & evidence

ORD record: ord-cbaf9b859bf2408583c8c316b0156ed4
Source dataset: uspto-grants-2015_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09174968B2

Reaction notes

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