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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820986Generated: November 1, 2026

N-methyl-2-pyrrolidone → 2-(Morpholin-4-yl)-3-trifluoromethyl-5-cyanopyridine

https://huagongshe.com/reaction/1820986

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methyl-2-pyrrolidoneHCID 13387—
Reactant4-[5-BRomo-3-(trifluoromethyl)pyridin-2-yl]morpholineHCID 68852564—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystFerrocene-1,1'-bis-(diphenylphosphine)HCID 635956—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Product2-(Morpholin-4-yl)-3-trifluoromethyl-5-cyanopyridineHCID 68850506—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 160 mg (0.63 mmol) of 2-(morpholin-4-yl)-3-trifluoromethyl-5-bromopyridine (from Step C), 117 mg (1.0 mmol) of zinc cyanide, 20.1 mg (0.22 mmol) of tris(dibenzylideneacetone)dipalladium(0) and 48.7 mg (0.088) mmol of 1,1′-bis(diphenylphosphino)ferrocene in 2 mL of N-methylpyrrolidinone under argon was stirred at 100° C. for 1 h. The mixture was cooled and partitioned between ether and water. The organic layer was dried and concentrated. Chromatography on a Biotage 40S cartridge using 9:1 v/v hexanes/ether then 17:3 v/v hexanes/ether as the eluant afforded 87 mg of the title compound: ESI-MS (m/z) 258.2; HPLC A: 3.04 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605171B2
Source datasetuspto-grants-2009_10
ORD IDord-e8657ee4ac0048c6ac4882b9e1e8d85c
Source noteuspto-grants-2009_10