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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1251950Generated: October 31, 2026

Butyl iodide → 4,6-Dibutoxy-2-trifluoromethylpyridine-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/1251950

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButyl iodideHCID 10962—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178470040HCID 178470040—
SolventAcetoneHCID 180—
Product4,6-Dibutoxy-2-trifluoromethylpyridine-3-carboxylic acid ethyl esterHCID 13726787198.8%

Reaction Steps

A mechanically stirred mixture of 22.6 g (0.09 mol) of product of Example 1, 99 g of butyl iodide, 24.84 g of potassium carbonate and 250 ml of acetone was held at reflux for 26 hours and filtered. The acetone filtrate was concentrated and the residue was dissolved in ether. The ether solution was washed with water, dried, and concentrated. The residue was kugelrohr distilled at 0.3 torr to give 32.5 g (99%) of product, nD25 1.4543.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04741766
Source datasetuspto-grants-1988_05
ORD IDord-becb1e6e299d4f4dacf779ec6e58188c
Source noteuspto-grants-1988_05