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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1016764Generated: October 30, 2026

Iodine → HCID 12180345, compound

https://huagongshe.com/reaction/1016764

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantSulfuric AcidHCID 1118—
ReactantN,N,N',N'-TetramethylethylenediamineHCID 8037—
Reactant3,4-Dimethylbenzyl alcoholHCID 23407—
ReactantButyllithiumHCID 178418339—
SolventPentaneHCID 8003—
SolventTetrahydrofuranHCID 8028—
ProductHCID 12180345HCID 1218034522.5%

Reaction Conditions

Temperature-30 °C

Reaction Steps

A solution, cooled to 0° C., of 6.81 g of 3,4-dimethylbenzyl alcohol and 11.62 ml of N,N,N′,N′-tetramethyl-ethylenediamine in 150 ml of pentane was treated with 62.5 ml of n-butyllithium solution (1.6M in hexane). The reaction mixture was boiled at reflux for 11 hrs. Then, 12.69 g of iodine in 50 ml of THF were added dropwise at −30° C. The mixture was stirred for 15 min. at −30° C. and then left to warm to room temperature. The reaction mixture was added to 100 ml of 10% sulphuric acid. The crude product was isolated by extraction and purified by chromatography on silica gel. There were obtained 2.95 g of (2-iodo-4,5-dimethyl-phenyl)-methanol as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06476264B2
Source datasetuspto-grants-2002_11
ORD IDord-35525d467f214c5dbe164b5d7bc023a9
Source noteuspto-grants-2002_11