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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 7780Generated: October 26, 2026

2-Aminophenol → 4-(Benzo[d]oxazol-2-yl)-2-methoxyphenol

https://huagongshe.com/reaction/7780

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminophenolHCID 5801—
ReactantVanillic AcidHCID 8468—
SolventTrimethyl(phosphooxy)silaneHCID 16133246—
Product4-(Benzo[d]oxazol-2-yl)-2-methoxyphenolHCID 135530812—

Reaction Conditions

Temperature180 °C

Reaction Steps

4-hydroxy-3-methoxybenzoic acid (25 g, 150 mmol) and 2-amino phenol (16 g, 150 mmol) were combined in a round bottom flask. Trimethylsilyl polyphosphate (80 mL) was added. The mixture was heated at 180° C. for 30 min. The mixture was poured over ice and allowed to stir overnight. The suspension was filtered to afford 4-(1,3-benzoxazol-2-yl)-2-methoxyphenol as a pale green solid. MS (ESI) 242 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07087601B2
Source datasetuspto-grants-2006_08
ORD IDord-e0ed6a9d85f54de885301c17ac0d5c45
Source noteuspto-grants-2006_08