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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1794553Generated: November 2, 2026

Hydrochloric Acid → HCID 23517377, compound

https://huagongshe.com/reaction/1794553

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-Ethynyl-4-methoxybenzeneHCID 251020—
ReactantMethyl 4-hydroxy-3-iodobenzoateHCID 11346465—
CatalystHCID 178418476HCID 178418476—
Solventpiperidine N,N-dimethylformamideHCID 23501187—
ProductHCID 23517377HCID 2351737771%

Reaction Conditions

Temperature6 °C

Reaction Steps

A mixture of Methyl 3-Iodo-4-hydroxybenzoate (0.7 g, 2.5 mmol), 4-Methoxyphenylacetylene (0.33 g, 2.5 mmol), Pd(Cl)2(PPh3)2 (0.05 g) and Cul (0.03 g) in DMF/Piperidine (20 ml) was heated at 6° C. After 2 hr, the reaction was cooled and poured into 2N HCl. The aqueous layer was extracted with EtOAc and then separated, dried, concentrated to give a solid. The solid was triturated with MeOH, filtered to give 142 (0.5 g, 71%): Mp=157–159° C.; 1H NMR (CDCl3) δ 8.28 (d, 1 H, J=1.3 Hz), 7.97 (dd, 1 H, J=8.5 Hz, 1.7 Hz), 7.82–7.79 (m, 2 H), 7.51 (d, 1 H, 8.5 Hz), 6.99 (d, 2 H, J=8.3 Hz), 6.93 (d, 1 H, J=9 Hz), 3.94 (s, 3 H), 3.87 (s, 3 H); MS 283 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07022733B2
Source datasetuspto-grants-2006_04
ORD IDord-8644713a8bd149cf986baf134956cc13
Source noteuspto-grants-2006_04