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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1169852Generated: October 30, 2026

Phthalic Anhydride → HCID 68687024, compound

https://huagongshe.com/reaction/1169852

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantTriethylamineHCID 8471—
ReactantHCID 21877166HCID 21877166—
SolventTolueneHCID 1140—
ProductHCID 68687024HCID 6868702484.7%

Reaction Conditions

Temperature125 °C

Reaction Steps

Aminocyclohexanol hydrochloride (6.3 g, 41.6 mmol) and triethylamine (11.6 mL, 83.1 mmol) were stirred in toluene (150 mL) at room temperature for 1 hour. To this was added phthalic anhydride (7.4 g, 49.9 mmol) and the reaction mixture was stirred at 120-130° C. The by-product water was removed from the reaction mixture. Toluene was concentrated under reduced pressure. The crude compound thus obtained was purified by column chromatography using ether in hexane solvent mixture (2:1) as eluent to furnish the title compound (8.5 g, 84%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07825147B2
Source datasetuspto-grants-2010_11
ORD IDord-9440f8d1783946a1b538d013ddc83fb8
Source noteuspto-grants-2010_11