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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 915468Generated: October 30, 2026

Triphenylphosphine → (6-{2-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-yl]-ethoxy}-indol-1-yl)-acetic acid ethyl ester

https://huagongshe.com/reaction/915468

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphenylphosphineHCID 11776—
ReactantDi-tert-butyl azodicarboxylateHCID 97268—
Reactant2-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-yl]-ethanolHCID 67402616—
Reactant(6-Hydroxy-indol-1-yl)-acetic acid ethyl esterHCID 68821422—
Product(6-{2-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-yl]-ethoxy}-indol-1-yl)-acetic acid ethyl esterHCID 69282523—

Reaction Steps

In analogy to the procedure described for example 3 c], (6-hydroxy-indol-1-yl)-acetic acid ethyl ester (example 2 e]) was reacted with 2-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-yl]-ethanol in the presence of di-tert-butyl azodicarboxylate and triphenylphosphine to give (6-{2-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-yl]-ethoxy}-indol-1-yl)-acetic acid ethyl ester as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07265149B2
Source datasetuspto-grants-2007_09
ORD IDord-9c60db201f8b4745b51c2fbf1f3b1444
Source noteuspto-grants-2007_09