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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1976780Generated: October 31, 2026

Benzyl Alcohol → Benzyl 1-methyl-oxindole-5-carboxylate

https://huagongshe.com/reaction/1976780

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl AlcoholHCID 244—
ReactantTetrahydrofuranHCID 8028—
ReactantTriethylamineHCID 8471—
Reactant5-Bromo-1-methyl-2-oxoindolineHCID 2432666—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
ProductBenzyl 1-methyl-oxindole-5-carboxylateHCID 21998744—

Reaction Conditions

Temperature130 °C

Reaction Steps

A solution of 5-bromo-1-methyl oxindole (3.75 g, 16.6 mmol) and triethylamine (3.48 mL) in THF (40 mL) was treated with benzyl alcohol (2.58 mL) and PdCl2(dppf) (300 mg), stirred under carbon monoxide (680 psi) at 130° C. for 16 hours, depressurized, filtered through diatomaceous earth (Celite®), and concentrated. The concentrate was purified on silica gel with 30% ethyl acetate/hexanes to provide 2.36 g of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06228868B1
Source datasetuspto-grants-2001_05
ORD IDord-e1162bedb14248e2ae3d2451e161fd4e
Source noteuspto-grants-2001_05