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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1868843Generated: November 2, 2026

Diisopropylethylamine → HCID 67099943, compound

https://huagongshe.com/reaction/1868843

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantGlycine tert-butyl ester hydrochlorideHCID 2725036—
ReactantHCID 67099732HCID 67099732—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67099943HCID 6709994383.7%

Reaction Conditions

Temperature90 °C

Reaction Steps

In a sealed flask was combined ethyl 8-fluoro-4-hydroxy-2-oxo-2′,3′,5′,6′-tetrahydro-spiro[naphthalene-1,4′-pyran]-3-carboxylate (1.8 g, 5.6 mmol), dioxane (75 mL), tert-butyl 2-aminoacetate hydrochloride (3.8 g, 22 mmol), and N-ethyl-N-isopropylpropan-2-amine (3.9 mL, 22 mmol). The flask was sealed and heated at 90° C. for 10 hours. After cooling to room temperature, the reaction was concentrated to give a solid that was purified by flash chromatography (20% EtOAc/hexane) to afford a white solid (1.9 g). MS m/e=406.1 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07635715B2
Source datasetuspto-grants-2009_12
ORD IDord-c8c3e774c08c492a85cfb1e4d3c3ef3b
Source noteuspto-grants-2009_12