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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858453Generated: November 4, 2026

Benzoic Acid → HCID 178525789, compound

https://huagongshe.com/reaction/858453

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoic AcidHCID 243—
ReactantTriphenylphosphineHCID 11776—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
ReactantHCID 178521621HCID 178521621—
ProductHCID 178525789HCID 17852578986%

Reaction Steps

To a stirred solution of cis-3-phenylcyclobutanol (Eckehard, V. D.; et al. Chem. Ber., 1993, 126, 2759., 4.6 g, 30.2 mmol), triphenylphosphine (3.3 g, 59.1 mmol) and benzoic acid (7.6 mg, 62.3 mmol) was added diethyl azodicarboxylate (DEAD) (10.9 g, 62.3 mmol) at room temperature. The resulting mixture was stirred at room temperature for 40 min, then the mixture was concentrated. The residue was dissolved in diethyl ether (100 mL) and washed with saturated aqueous sodium bicarbonate (50 mL), water (50 mL), and brine (50 mL). The organic layer was dried (Na2SO4), and concentrated. Purification by flash column chromatography on silica gel eluting with hexane/ethyl acetate (10:1) to afford 6.52 g (86%) of the title compound as a pale yellow oil: 1H-NMR (CDCl3) δ 7.71–7.20 (10H, m), 5.49–5.41 (1H, m), 3.82–3.72 (1H, m), 2.78–2.64 (4H, m).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148234B2
Source datasetuspto-grants-2006_12
ORD IDord-53e0c0d8072344f2891d5781f1e6f704
Source noteuspto-grants-2006_12