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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 335098Generated: October 25, 2026

Hydrochloric Acid → 3-Benzyl-N-(4-methylthiazol-2-yl)pyridin-2-amine hydrochloride

https://huagongshe.com/reaction/335098

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantCesium carbonateHCID 10796—
Reactant9-Benzyl-9-borabicyclo(3.3.1)nonaneHCID 4150924—
Reactant3-bromo-N-(4-methylthiazol-2-yl)pyridin-2-amineHCID 61375648—
CatalystPalladium ChlorideHCID 24290—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product3-Benzyl-N-(4-methylthiazol-2-yl)pyridin-2-amine hydrochlorideHCID 2476452450.6%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of mL 3-bromo-N-(4-methylthiazol-2-yl)pyridin-2-amine (70 mg, 0.26 mmol), Cs2CO3 (250 mg, 0.78 mmol), PdCl2 (dppf) (21.2 mg, 0.026 mmol), and DMF (2 mL) and water (0.5 mL) was purged with nitrogen and 9-benzyl-9-bora-bicyclo[3.3.1]nonane (1.5 mL, 0.78 mmol) was added and heated to 60° C. overnight. Additional 9-benzyl-9-bora-bicyclo[3.3.1]nonane (1.5 mL, 0.78 mmol) was added and heated again overnight. Poured into water and extracted with ether. The organic layer was dried with sodium sulfate, filtered and concentrated. The residue was purified on silica gel (10% EtOAc in hexanes) to afford the title compound (41.7 mg, 50.6% yield) as a white solid after HCl salt formation. 1H NMR (d6-DMSO) δ 8.30 (d, 1H), 7.62 (d, 1H), 7.35-7.10 (m, 6H), 6.82 (s, 1H), 4.21 (s, 2H), 2.32 (s, 3H); Mass spectrum (esi) m/z=282.2 (100)(M+H—HCl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883828B2
Source datasetuspto-grants-2014_11
ORD IDord-fc5b9c53bfaf4c6fb555cbf601b51658
Source noteuspto-grants-2014_11