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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1454645Generated: October 30, 2026

Benzoic Acid → HCID 178525789, compound

https://huagongshe.com/reaction/1454645

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 numberUS07479564B2
Source datasetuspto-grants-2009_01
ORD IDord-7be46e25b85b4b91bcd8f8eab1aa9e5d
Source noteuspto-grants-2009_01