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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1439292Generated: November 3, 2026

Hexamethylphosphoramide → 4-Hydroxybutyl 4-(n-hexadecylamino)benzoate

https://huagongshe.com/reaction/1439292

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHexamethylphosphoramideHCID 12679—
Reactant4-Chloro-1-butanolHCID 13569—
ReactantCetaben SodiumHCID 23703815—
SolventWaterHCID 962—
Product4-Hydroxybutyl 4-(n-hexadecylamino)benzoateHCID 13019378—

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 7.66 g of sodium 4-(n-hexadecylamino)benzoate, 7.55 g of 4-chloro-1-butanol, and 20.0 ml of hexamethylphosphoramide is stirred at 150° C for two hours, allowed to cool, and poured into water. The solid is collected by filtration and then is dissolved in methylene chloride. The solution is washed with water, dried, and evaporated. The residual solid is crystallized from hexane to yield 4-hydroxybutyl 4-(n-hexadecylamino)benzoate as a white solid, mp 61°-63° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04058550
Source datasetuspto-grants-1977_11
ORD IDord-af604fec45c54c5095652e5a80610820
Source noteuspto-grants-1977_11