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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2239598Generated: November 1, 2026

Sodium hydride → HCID 131728135, compound

https://huagongshe.com/reaction/2239598

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant2-Chloro-5-(trifluoromethyl)pyridineHCID 92342—
Reactanttert-butyl N-(2-hydroxyethyl)carbamateHCID 2733206—
ProductHCID 131728135HCID 13172813537%

Reaction Conditions

Temperature100 °C

Reaction Steps

Tert-Butyl (2-hydroxyethyl)carbamate (8.88 g, 55.08 mmol) was added to a solution of NaH (55%, 55.08 mmol, washed twice with petroleum ether) in DMF (150 ml) at −10° C. and stirred for 10 mins. 2-Chloro-5-(trifluoromethyl)pyridine (10.0 g, 55.08 mmol) was added and the reaction mixture was stirred at rt for 3 days, heated to 100° C. and cooled to rt. The reaction mixture was evaporated, the residue was washed with isopropylether, and the solution was decanted from insoluble salts and concentrated. The residue was dissolved in EtOAc, washed twice with water, dried over MgSO4 and concentrated. Recrystallisation from isobutylethyl ether gave the title compound (6.2 g, 37%). 1H-NMR (500 MHz, CDCl3) δ 1.46 (s, 9H), 3.56 (br.m, 2H), 4.45 (t, 2H), 6.84 (d, 1H), 7.79 (dd, 1H), 8.44 (s, 1H.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07723333B2
Source datasetuspto-grants-2010_05
ORD IDord-71c5f6b0d1e64858914781972be2c7c8
Source noteuspto-grants-2010_05