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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1018451Generated: October 30, 2026

Hydrochloric Acid → 7-Bromo-1-(4-nitrophenyl)-isochromane

https://huagongshe.com/reaction/1018451

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-NitrobenzaldehydeHCID 541—
Reactant2-(4-Bromophenyl)ethanolHCID 72851—
CatalystZincchlorideHCID 3007855—
SolventBenzeneHCID 241—
Product7-Bromo-1-(4-nitrophenyl)-isochromaneHCID 18401487—

Reaction Steps

20.1 g (100 mM) of 2-(4-bromophenyl)-ethanol and 15.1 g (100 mM) of 4-nitrobenzaldehyde were dissolved in 300 ml of anhydrous benzene, then 13.6 g (100 mM) of anhydrous zinc chloride were added and dry hydrochloric acid gas was led into the stirred mixture for 4 hours. Then the process described under Examples 1-7, Step a) was applied. The crude product was recrystallized from ethyl acetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06482819B1
Source datasetuspto-grants-2002_11
ORD IDord-8ac75809898240ffa4bcf3d7a00f6bbe
Source noteuspto-grants-2002_11