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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 747201Generated: October 29, 2026

Methanol → 1-[3-(5-Bromo-thien-2-yl)-4,5-dihydro-isoxazol-5-ylmethyl]-4-methyl-1H-1,2,3-triazole

https://huagongshe.com/reaction/747201

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantDiisopropylethylamineHCID 81531—
Reactant[3-(5-Bromo-thien-2-yl)-4,5-dihydro-isoxazol-5-yl]-methylamineHCID 17954483—
ReactantN'-[2,2-dichloro-1-methylethylidene]-4-methylbenzenesulfonohydrazideHCID 73181071—
SolventEthyl AcetateHCID 8857—
Product1-[3-(5-Bromo-thien-2-yl)-4,5-dihydro-isoxazol-5-ylmethyl]-4-methyl-1H-1,2,3-triazoleHCID 5974951928.9%

Reaction Steps

[3-(5-Bromo-thien-2-yl)-4,5-dihydro-isoxazol-5-yl]-methylamine (2.2 g, 8.4 mmol) and diisopropylethylamine (7.3 ml, 42 mmol) were added to anhydrous methanol (50 ml) followed by addition of N′-[2,2-dichloro-1-methylethylidene]-4-methylbenzenesulfonohydrazide (3.2 g, 10.9 mmol). The reaction was stirred at room temperature for four hours and then ethyl acetate was added. The precipitate was collected and washed with water (2×25 ml) to give the desired product (793 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07396847B2
Source datasetuspto-grants-2008_07
ORD IDord-62c311fa1dbc4df8b3731b88aa8a625a
Source noteuspto-grants-2008_07