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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1744786Generated: October 30, 2026

Triethylamine → HCID 21019513, compound

https://huagongshe.com/reaction/1744786

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPhosphorodichloridic acid, phenyl esterHCID 13038—
ReactantAlanine methyl ester hydrochlorideHCID 2733257—
SolventDichloromethaneHCID 6344—
ProductHCID 21019513HCID 21019513—

Reaction Conditions

Temperature-50 °C

Reaction Steps

A solution of triethylamine (1 ml- 7.17 mmol) in 15 ml of dry CH2Cl2 was added dropwise to a mixture of phenyl phosphorodichloridate (757.4 mg, 3.59 mmol) and L-alanine methyl ester hydrochloride (500 mg, 3.58 mmol) in 50 ml of dry CH2Cl2 at −80° C. in one hour. The mixture was then stirred vigorously at −50° C. during five hours and CH2Cl2 evaporated. 25 ml of dry ether was added and precipitate filtered off under nitrogen. Evaporation of ether gave a colourless oil which was used without further purification for the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07018989B2
Source datasetuspto-grants-2006_03
ORD IDord-39035ac774b44b16a7eab1e618d34c15
Source noteuspto-grants-2006_03