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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 237263Generated: October 28, 2026

Water → HCID 67346530, compound

https://huagongshe.com/reaction/237263

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantCesium carbonateHCID 10796—
ReactantBenzeneacetic acid, alpha-bromo-, methyl esterHCID 137806—
Reactant3-(5-Chloro-2-hydroxy-phenoxy)-azetidine-1-carboxylic acid tert-butyl esterHCID 67342909—
SolventDimethylformamideHCID 6228—
ProductHCID 67346530HCID 6734653096.5%

Reaction Steps

To 3-(5-Chloro-2-hydroxy-phenoxy)-azetidine-1-carboxylic acid tert-butyl ester (1.1 g, 3.7 mmol) in DMF (18 mL) was added Cs2CO3 (1.5 g, 4.4 mmol) and bromophenylacetic acid methyl ester (0.92 g, 0.63 mL, 4.0 mmol). After 15 h, H2O was added and the mixture extracted with EtOAc (2×). The combined organics were washed with brine and dried. Silica gel chromatography (5-25% EtOAc in hexanes) gave 1.6 g (96%) of the title compound. 1H NMR (CDCl3): 7.55-7.33 (m, 2H), 7.43-7.36 (m, 3H), 6.85 (d, J=1.2, 2H), 6.51 (t, J=1.2 Hz, 1H), 5.58 (s, 1H), 4.91-4.85 (m, 1H), 4.31-4.26 (m, 2H), 3.98-3.93 (m, 2H), 3.89-3.74 (m, 3H), 1.46 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642583B2
Source datasetuspto-grants-2014_02
ORD IDord-b2420379d3b74cf59d80e3a8474af8ca
Source noteuspto-grants-2014_02