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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2053615Generated: October 31, 2026

Ethyl diazoacetate → HCID 45098996, compound

https://huagongshe.com/reaction/2053615

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl diazoacetateHCID 12192—
Reactant1-CyclopentylethanolHCID 95434—
CatalystAcetic acid, rhodium salt (4:2)HCID 423677—
SolventDichloromethaneHCID 6344—
SolventHeptaneHCID 8900—
ProductHCID 45098996HCID 4509899644.8%

Reaction Steps

To a solution of 1-cyclopentylethan-1-ol (1.14 g, 10.0 mmol) in dichloromethane (20 mL) is added rhodium (II) acetate dimer (10 mg) followed by ethyl diazoacetate (0.95 mL, 9.03 mmol). The reaction mixture is stirred at rt for 0.5 h. The reaction mixture is diluted with heptane, and filtered. The filtrate is evaporated, and the residue is purified by chromatography on silica gel; elution with EtOAc:heptane (1:9) gives 0.81 g of the product 452. 1H NMR (CDCl3) δ 4.30-4.15 (m, 2H), 4.09 (d, 2H), 3.25-3.15 (m, 1H), 2.00-1.78 (m, 2H), 1.75-1.35 (m, 6H), 1.29 (t, 3H), 1.15 (d, 3H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07326792B2
Source datasetuspto-grants-2008_02
ORD IDord-79efbe69c7f14c9c89d958e1be471551
Source noteuspto-grants-2008_02