Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 35375Generated: October 26, 2026

DL-Carnitine → 4-Carbomethoxy butyryl carnitine chloride

https://huagongshe.com/reaction/35375

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDL-CarnitineHCID 288—
ReactantDiethyl EtherHCID 3283—
ReactantMethyl 4-chloroformylbutyrateHCID 73916—
SolventTrifluoroacetic acidHCID 6422—
Product4-Carbomethoxy butyryl carnitine chlorideHCID 131715702—

Reaction Steps

To a solution of carnitine chloride (2.0 g; 10 m moles) in TFA (5 cc), 4-carbomethoxy butyryl chloride (1.65 cc; 12 m moles) was added and the resulting reaction mixture was kept at room temperature under stirring for 24 hours. To this mixture anhydrous ethyl ether was then added. A solid formed which was filtered off and crystallized from hot isopropanol. M.P. 130°-132° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04766222
Source datasetuspto-grants-1988_08
ORD IDord-96f8a0ff3c6b4f4ea6fcbcff987e883e
Source noteuspto-grants-1988_08