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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 889877Generated: October 25, 2026

3-Pentanol → HCID 22249119, compound

https://huagongshe.com/reaction/889877

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-PentanolHCID 11428—
ReactantSodium hydrideHCID 24758—
Reactant[4-(5-Bromo-6-ethyl-3-methoxypyrazin-2-yl)-3-methoxyphenoxy]trifluoromethaneHCID 22248930—
SolventTetrahydrofuranHCID 8028—
ProductHCID 22249119HCID 22249119—

Reaction Conditions

Temperature50 °C

Reaction Steps

To a stirred solution of 3-pentanol (88 mg, 1 mmol) in THF (1 mL) is added 60% sodium hydride (12 mg, 0.3 mmol) and after 0.5 h [4-(5-bromo-6-ethyl-3-methoxypyrazin-2-yl)-3-methoxyphenoxy]trifluoromethane (41 mg, 0.1 mmol) is added. The mixture is heated to 50° C. for 12 h, cooled and partitioned between ethyl acetate and water. The organic layer is washed with water, brine, dried (sodium sulfate), filtered and concentrated. The residue is purified by preparative TLC eluting with 50% ether in hexanes to give {4-[6-Ethyl-5-(ethylpropoxy)-3-methoxypyrazin-2-yl]-3-methoxyphenoxy}trifluoromethane, a colorless oil (19 mg). NMR (CDCL3, 400 MHz) □0.98 (t, 6 H), 1.22 (t, 3 H), 1.78 (m, 4 H) 2.80 (q, 2 H), 3.80 (s, 3 H), 3.88 (s, 3 H), 5.05 (quintet, 1 H), 6.8 (s, 1 H), 6.90 (d, 1 H), 7.37 (d, 1 H); MS 345 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06995161B2
Source datasetuspto-grants-2006_02
ORD IDord-81b5035f9c3c4183b65a9ea659ccf76c
Source noteuspto-grants-2006_02