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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2254497Generated: October 30, 2026

Heptanoic Acid → HCID 19100373, compound

https://huagongshe.com/reaction/2254497

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHeptanoic AcidHCID 8094—
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant4-PyrrolidinopyridineHCID 75567—
ReactantHCID 135736970HCID 135736970—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductHCID 19100373HCID 1910037388.6%

Reaction Steps

To 0.32 g (1.03 mM) of 2-(p-hydroxyphenyl)-6-hexylbenzothiazole, 0.13 g 1.03 mM) of heptanoic acid, 15 ml of methylene chloride and 5 ml of tetrahydrofuran were added, followed by addition of 0.21 g of N,N'-dicyclohexylcarbodiimide (DCC) and 0.02 g of 4-pyrrolidinopyridine under stirring at room temperature and further stirring for 6 hours at room temperature. After the reaction, the resultant N,N'-dicyclohexylurea was recovered by filtration, followed by washing with methylene chloride to be added to the filtrate. The solvent of the resultant filtrate was distilled-off under reduced pressure to obtain a residue. The residue was purified by silica gel column chromatography (eluent: toluene), followed by two times of recrystallization from a mixture solvent of toluene/methanol to obtain 0.39 g of 2-(p-hexylcarbonyloxyphenyl)-6-hexylbenzothiazole (Yield: 88.6%). ##STR203##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05236619
Source datasetuspto-grants-1993_08
ORD IDord-97c8bfcb5323452c980376dcac07645c
Source noteuspto-grants-1993_08