Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 901832Generated: October 31, 2026

1,3-Dibromopropane → HCID 59700576, compound

https://huagongshe.com/reaction/901832

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-DibromopropaneHCID 8001—
ReactantSodium CarbonateHCID 10340—
Reactant7-Fluoro-3,4-dihydro-2H-1,4-benzoxazineHCID 14422953—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 59700576HCID 5970057647.3%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 7-fluoro-3,4-dihydro-2H-benzo[b][1,4]oxazine (1.3 g, 1 eq, 8.49 mmol) obtained in step (iii) above, 1,3-dibromo propane (8.6 ml, 10 eq, 84.9 mmol) and anhydrous sodium carbonate (2.7 g, 3 eq, 25.4 mmol) in dry DMF (85 ml) was heated at 70° C. for 16 h. The reaction was diluted with ethyl acetate and washed with water and brine. The residue was chromatographed using ethyl acetate and hexane to afford the title compound (1.1 g, yield 47%) as viscous oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07365064B2
Source datasetuspto-grants-2008_04
ORD IDord-2a01adcf746d4d7191aec9feb880a20a
Source noteuspto-grants-2008_04