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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 632980Generated: October 26, 2026

2-Aminopyridine → N-(4-chloro-3-(pyridin-2-ylamino)phenyl)-6-(trifluoromethyl)-2-methylpyridine-3-carboxamide

https://huagongshe.com/reaction/632980

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminopyridineHCID 10439—
ReactantPotassium tert-butoxideHCID 23665647—
ReactantN-(4-Chloro-3-iodophenyl)-6-(trifluoromethyl)-2-methylpyridine-3-carboxamideHCID 66877122—
CatalystFerrocene-1,1'-bis-(diphenylphosphine)HCID 635956—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
SolventDiethyl EtherHCID 3283—
ProductN-(4-chloro-3-(pyridin-2-ylamino)phenyl)-6-(trifluoromethyl)-2-methylpyridine-3-carboxamideHCID 58614822—

Reaction Conditions

Temperature23 °C

Reaction Steps

N-(4-Chloro-3-iodophenyl)-6-(trifluoromethyl)-2-methylpyridine-3-carboxamide (220 mg, 0.5 mmol), 2-aminopyridine (40 mg, 0.42 mmol), potassium t-butoxide (66 mg, 0.59 mmol), Pd2(dba)3 (20 mg, 0.21 mmol), dppf (24 mg, 0.042 mmol) in toluene (2.1 mL) were heated to 100° C. for 1.5 days. The solution was cooled to 23° C., diluted with ether, filtered through celite, washed with ethyl acetate, and concentrated. Purified by reverse phase HPLC to yield N-(4-chloro-3-(pyridin-2-ylamino)phenyl)-6-(trifluoromethyl)-2-methylpyridine-3-carboxamide as a white solid: 1H NMR (CDCl3, 400 MHz) δ 11.53 (s, 1H), 9.68 (s, 1H), 8.05 (m, 2H), 7.85 (m, 2H), 7.55 (d, 1H), 7.26 (d, 1H), 7.13 (dd, 1H), 6.91 (t, 1H), 6.88 (d, 1H), 2.75 (s, 3H); MS (Q1) 407.0 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321761B2
Source datasetuspto-grants-2016_04
ORD IDord-e0804bdb9b034b1e861efcd90e3092a0
Source noteuspto-grants-2016_04