3-Aminophenol → tert-butyl 2-(2-((3-hydroxyphenyl)amino)oxazol-5-yl)-1H-indole-1-carboxylate

HRID 537855Notes

Reaction equation

Cl[C:2]1[O:3][C:4]([C:7]2[N:8]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[C:9]3[C:14]([CH:15]=2)=[CH:13][CH:12]=[CH:11][CH:10]=3)=[CH:5][N:6]=1.[NH2:23][C:24]1[CH:25]=[C:26]([OH:30])[CH:27]=[CH:28][CH:29]=1>CC(O)C>[OH:30][C:26]1[CH:25]=[C:24]([NH:23][C:2]2[O:3][C:4]([C:7]3[N:8]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[C:9]4[C:14]([CH:15]=3)=[CH:13][CH:12]=[CH:11][CH:10]=4)=[CH:5][N:6]=2)[CH:29]=[CH:28][CH:27]=1

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of tert-butyl 2-(2-chlorooxazol-5-yl)-1H-indole-1-carboxylate 21 (0.23 g, 0.723 mmol) and commercially available 3-aminophenol 8 (0.079 g, 0.724 mmol) in 2-propanol (20 mL) was heated to 80° C. for 14 h with stirring. Upon cooling, solvent was evaporated and silica column purified (Biotage) (Acetone/hexane as an eluent) to provide tert-butyl 2-(2-((3-hydroxyphenyl)amino)oxazol-5-yl)-1H-indole-1-carboxylate

Workup

temperatureUpon cooling
customsolvent was evaporated
customsilica column purified (Biotage) (Acetone/hexane as an eluent)

Sources & evidence

ORD record: ord-ca129ae308d84ed19f06ea23d49d9674
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08865709B2

Reaction notes

Loading…