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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1587705Generated: November 1, 2026

Triethylene Glycol → 4-Undecylpyridine

https://huagongshe.com/reaction/1587705

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylene GlycolHCID 8172—
ReactantHydrazineHCID 9321—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 19756119HCID 19756119—
SolventWaterHCID 962—
Product4-UndecylpyridineHCID 57169780.7%

Reaction Steps

A mixture of 8.50 g (34 mmol) of 4-n-undecanoylpyridine, 5.55 g (0.11 mol) of hydrazine.monohydrate, 4.41 g (74 mmol) of potassium hydroxide, and 30 ml of triethylene glycol was heated at 110° to 125° C. for one hour, and further, at 180° to 185° C. for 4 hours. After cooling, 50 ml of water was added, and the mixture was extracted with diethyl ether, washed with water and then dried over anhydrous potassium carbonate. After concentration under a reduced pressure, the residue was purified by distillation under a reduced pressure to give 6.40 g of the desired product (yield 79.8%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05219847
Source datasetuspto-grants-1993_06
ORD IDord-b4b38eb3dc5d48e28184f96f6463e484
Source noteuspto-grants-1993_06