Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 52287Generated: October 28, 2026

Ammonia → HCID 54552478, compound

https://huagongshe.com/reaction/52287

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHCID 22871221HCID 22871221—
SolventHydrogen BromideHCID 260—
ProductHCID 54552478HCID 54552478102.3%

Reaction Conditions

Temperature120 °C

Reaction Steps

(R)-3-(N-Cyclopentyl-N-cyclobutylamino)-8-fluoro-5-methoxy-3,4-dihydro-2H-1-benzopyran (0.53 g, 1.6 mmol) was dissolved in 47% HBr (15 mL) and stirred at 120° C. for 1.5 h. The solution was cooled by adding ice and alkalised by 14M ammonia. Extractive work-up gave 0.5 g of the title compound as a slightly brown oil. IR contained a typical OH-band at 3654 cm-1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05616610
Source datasetuspto-grants-1997_04
ORD IDord-fc90620444474edaa79b1c3ffdd89abd
Source noteuspto-grants-1997_04