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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2098452Generated: October 26, 2026

1,4-Dioxane → 5-(4-Pyridinyl)-1H-indole-2-carboxylic acid

https://huagongshe.com/reaction/2098452

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant5-Bromo-1H-indole-2-carboxylic acidHCID 252137—
Reactant(Pyridin-4-yl)boronic acidHCID 2734379—
CatalystPalladium ChlorideHCID 24290—
SolventWaterHCID 962—
Product5-(4-Pyridinyl)-1H-indole-2-carboxylic acidHCID 58286528—

Reaction Steps

A solution of 5-bromo-1H-indole-2-carboxylic acid (25 mg), PdCl2 HPNor2 (5 mg), K3PO4 (45 mg), 4-pyridylboronic acid (26 mg), dioxane (1 mL) and H2O (1 mL) was heated to 170° C. in a microwave for 2 h. The solution was passed thru a C18-SPE cartridge eluting with 3, 20, 60, and finally 95% CH3CN in H2O to yield the crude product. LCMS (m/z): 239.1 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08450484B2
Source datasetuspto-grants-2013_05
ORD IDord-5a183b0913714c8a8faaca6ba8c46aae
Source noteuspto-grants-2013_05