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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2186522Generated: October 31, 2026

Hydrochloric Acid → HCID 22456878, compound

https://huagongshe.com/reaction/2186522

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIodineHCID 807—
Reactant3-Benzyloxy-4-hydroxybenzaldehydeHCID 11020635—
SolventSodium HydroxideHCID 14798—
ProductHCID 22456878HCID 2245687879.9%

Reaction Conditions

Temperature77.5 °C

Reaction Steps

To a mixture of 3-Benzyloxy-4-hydroxy benzaldehyde (15 g, 0.065 mol) and Iodine (17.54 g, 0.13 mol) was added 3.2% NaOH solution (150 ml). The reaction mixture was stirred at 75-80° C. for 8 h. The reaction mixture was cooled to room temperature and concentrated hydrochloric acid was added and the solid was filtered. Then the compound was recrystalized with isopropanol. The solid was filtered and dried to give 3-benzyloxy-4hydroxy-5-Iodo benzaldehyde (18.40 g, 79%). TLC: Ethyl acetate:light petroleum (2:5), Rf=0.4; 1H NMR (CDCl3, 200 MHz): δ 5.20 (s, 2H), 7.23-7.45 (m, 6H), 7.8 (d, J=1.42 Hz, 1H), 9.73 (s,1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06403814B1
Source datasetuspto-grants-2002_06
ORD IDord-49dd88b67fa24c1d84d1dd696b377256
Source noteuspto-grants-2002_06