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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2199733Generated: October 29, 2026

Hydrogen Bromide → (4-Bromo-3-trifluoromethyl-phenyl)-morpholin-4-yl-methanone

https://huagongshe.com/reaction/2199733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantSulfuric AcidHCID 1118—
ReactantSodium NitriteHCID 23668193—
Reactant(4-Amino-3-(trifluoromethyl)phenyl)(morpholino)methanoneHCID 62155530—
SolventWaterHCID 962—
Product(4-Bromo-3-trifluoromethyl-phenyl)-morpholin-4-yl-methanoneHCID 68941524—

Reaction Steps

To a mixture of EXAMPLE 144B (8.3 g) was added water (75 mL) and H2SO4 (25 mL). The mixture was stirred at 0° C. while NaNO2 (3.13 g) in water (30 mL) was added. After stirring for 1 hour, the mixture was added to CuBr (5.45 g) in 48% HBr (200 mL). This mixture was stirred at 60° C. for 3 hours, cooled to room temperature, and partitioned between water and ethyl acetate. The organic layer was washed with aqueous Na2CO3 and dried (Na2SO4), filtered and concentrated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09359296B2
Source datasetuspto-grants-2016_06
ORD IDord-b85f67f6aad84585abbb676ab5d92dee
Source noteuspto-grants-2016_06