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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1861883Generated: November 2, 2026

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

https://huagongshe.com/reaction/1861883

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—
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 numberUS06534544B1
Source datasetuspto-grants-2003_03
ORD IDord-135e1a88e11f4537b648f4b169ef6620
Source noteuspto-grants-2003_03