Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 398058Generated: October 30, 2026

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

https://huagongshe.com/reaction/398058

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 numberUS06610744B2
Source datasetuspto-grants-2003_08
ORD IDord-4373544e45264bb59b9adcb73541a31d
Source noteuspto-grants-2003_08