Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 341955Generated: October 31, 2026

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

https://huagongshe.com/reaction/341955

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 numberUS05856490
Source datasetuspto-grants-1999_01
ORD IDord-19be3f64e3b74f00a78757226d2af283
Source noteuspto-grants-1999_01