Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227838Generated: October 31, 2026

Hydrogen Bromide → HCID 136131615, compound

https://huagongshe.com/reaction/227838

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 57756259HCID 57756259—
SolventAcetic AcidHCID 176—
ProductHCID 136131615HCID 136131615—

Reaction Conditions

Temperature140 °C

Reaction Steps

A RBF was charged with 13.9 mL of 1:1 AcOH:HBr and 4-ethyl-N-(4-methoxyphenyl)-6-phenylpyridazin-3-amine (1.27 g, 4.16 mmol). The flask was fitted with a reflux condenser and was heated at 140° C. for 4 h. Upon cooling, the reaction mixture was poured into ice water and brought to neutral pH by careful addition of 2M aqueous Na2CO3. The resulting precipitate was filtered, washed with water and dried under vacuum to provide 4-(4-ethyl-6-phenylpyridazin-3-ylamino)phenol as a tan solid. MS m/z=292 [M+H]+. Calc'd for C18H17N3O: 291.35.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560551B2
Source datasetuspto-grants-2009_07
ORD IDord-e5057b0ba54c48b3adb1d48ae359c413
Source noteuspto-grants-2009_07