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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1939732Generated: October 30, 2026

Palmitic Acid → HCID 21468097, compound

https://huagongshe.com/reaction/1939732

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPalmitic AcidHCID 985—
ReactantDicyclohexylcarbodiimideHCID 10868—
ReactantShikoninHCID 479503—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 21468097HCID 2146809759.5%

Reaction Steps

288 mg (1 mmole) of shikonin, 226 mg (1.1 mmole) of dicyclohexylcarbodiimide and 30 mg (0.25 mmole) of 4-dimethylaminopyridine were dissolved in 3 ml of dry dichloromethane. To the resulting solution was added 256 mg (1 mmole) of palmitic acid at 0° C. under nitrogen gas, and the mixture was stirred for 30 minutes and then at room temperature for further 3 hours. The resulting product was separated and purified according to the procedures as described in Example 1 to obtain 305 mg (Yield: 58%) of the title compound having the following structure as a red precipitate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05696276
Source datasetuspto-grants-1997_12
ORD IDord-717689ad79fc4585a2cc360b2966857f
Source noteuspto-grants-1997_12