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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 18804Generated: October 26, 2026

Ethyl diazoacetate → (3-Trifluoromethylbenzyloxy)acetic Acid Ethyl Ester

https://huagongshe.com/reaction/18804

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl diazoacetateHCID 12192—
Reactant3-(Trifluoromethyl)benzylic alcoholHCID 67681—
CatalystAcetic acid, rhodium salt (4:2)HCID 423677—
SolventDichloromethaneHCID 6344—
SolventHeptaneHCID 8900—
Product(3-Trifluoromethylbenzyloxy)acetic Acid Ethyl EsterHCID 6857223097.9%

Reaction Steps

To a solution of 3-trifluoromethylbenzyl alcohol (1.62 g, 10.0 mmol) in dichloromethane (20 mL) is added rhodium (II) acetate dimer (10 mg) followed by ethyl diazoacetate (0.95 mL, 9.0 mmol). The reaction mixture is stirred at RT for 30 min. The reaction mixture is diluted with heptane, filtered through Celite, and the filtrate is evaporated and the residue is vacuum distilled at 150° C. to give 2.31 g of the product 394. 1H NMR (CDCl3) δ 7.65 (bs, 1H), 7.57 (m, 2H), 7.48 (t, 1H), 4.69 (s, 2H), 4.24 (q, 2H), 4.14 (s, 2H), 1.30 (t, 3H); MS: m/z 263 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07741493B2
Source datasetuspto-grants-2010_06
ORD IDord-4849db3f64cf446ca8fa05063e74d175
Source noteuspto-grants-2010_06