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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1054978Generated: November 2, 2026

1-ethyl-5-pyrrolidin-1-yl-3-trimethylsilanylethynyl-1H-[1,2,4]triazole → 1-ethyl-3-ethynyl-5-pyrrolidin-1-yl-1H-[1,2,4]triazole

https://huagongshe.com/reaction/1054978

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-ethyl-5-pyrrolidin-1-yl-3-trimethylsilanylethynyl-1H-[1,2,4]triazoleHCID 90025644—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
SolventSodium HydroxideHCID 14798—
Product1-ethyl-3-ethynyl-5-pyrrolidin-1-yl-1H-[1,2,4]triazoleHCID 9001687289.3%

Reaction Conditions

Temperature25 °C

Reaction Steps

A mixture of 1-ethyl-5-(pyrrolidin-1-yl)-3-((trimethylsilyl)ethynyl)-1H-1,2,4-triazole (122 mg, 465 μmol, Eq: 1.00) in methanol (3 ml) and 1N NaOH aq. (0.1 ml) was stirred for 18 hours at 25° C. under argon atmosphere. The mixture was diluted with ethyl acetate and washed with water. The organic layer was separated, dried over magnesium sulfate, filtered and concentrated affording 1-ethyl-3-ethynyl-5-pyrrolidin-1-yl-1H-[1,2,4]triazole (79 mg, 89.3%) as an orange oil. MS: m/z=191.2 (M+H+)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09394311B2
Source datasetuspto-grants-2016_07
ORD IDord-0eb44f9ab9f349ebb90191742d90bd9e
Source noteuspto-grants-2016_07