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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1780068Generated: October 25, 2026

Dicyclohexylcarbodiimide → HCID 178443715, compound

https://huagongshe.com/reaction/1780068

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant3-Chloro-5-hydroxy-2-(4-octyloxyphenyl)pyridineHCID 19049995—
ReactantHCID 178444557HCID 178444557—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 178443715HCID 17844371521.8%

Reaction Steps

0.78 g (2.50 mmol) of 3-chloro-5-hydroxy-2-(4-octyloxyphenyl)pyridine, 0.52 g (2.50 mmol) of dicyclohexylcarbodiimide, 0.50 g (2.50 mmol) of trans-4-pentylcyclohexanecarboxylic acid and 0.01 g of 4-(N,N-dimethylamino)-pyridine are stirred at room temperature for 18 hours in 20 ml of dichloromethane. Filtration, evaporation to dryness and chromatographic purification (silica gel/ hexane:ethyl acetate 8:2) and recrystallization from acetonitrile give 0.28 g of 3-chloro-2-(4-octyloxyphenyl)pyridin-5-yl trans-4-pentylcyclohexanecarboxylate. ##STR26##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05629428
Source datasetuspto-grants-1997_05
ORD IDord-3c072e67a96c41aca6cc154b14397a8d
Source noteuspto-grants-1997_05