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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636543Generated: November 3, 2026

Iodine chloride → 8Iodo-2,2,4,4-tetramethy-6-chromanoic Acid

https://huagongshe.com/reaction/1636543

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodine chlorideHCID 24640—
Reactant2,2,4,4-Tetramethyl-3,4-dihydro-2H-1-benzopyran-6-carboxylic acidHCID 15728709—
Reactant8-Bromo-2,2,4,4-tetramethyl-6-chromanoic acidHCID 15840535—
SolventAcetic AcidHCID 176—
Product8Iodo-2,2,4,4-tetramethy-6-chromanoic AcidHCID 23001763106.1%

Reaction Steps

To a solution of 2,2,4,4-tetramethyl-6-chromanoic acid (66 mg, 0.28 mmol) in 0.8 ml of AcOH was added ICl (0.07 ml, 1.4 mmol). The resulting colored solution was stirred at room temperature for overnight. Following the same procedure as for the synthesis of 8-bromo-2,2,4,4-tetramethyl-6-chromanoic acid (Compound P), the reaction gave the title compound (107 mg) as white solids.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06034244
Source datasetuspto-grants-2000_03
ORD IDord-4da2d2abd622485abb0b157491d52237
Source noteuspto-grants-2000_03