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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1038092Generated: October 30, 2026

Water → 5-Pyrimidin-2-yl-1',2',3',6'-tetrahydro-[2,4']bipyridinyl

https://huagongshe.com/reaction/1038092

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
Reactant1,1-Dimethylethyl 3',6'-dihydro-5-(2-pyrimidinyl)[2,4'-bipyridine]-1'(2'h)-carboxylateHCID 58946463—
SolventDichloromethaneHCID 6344—
Product5-Pyrimidin-2-yl-1',2',3',6'-tetrahydro-[2,4']bipyridinylHCID 58946449116.2%

Reaction Steps

Added 4M HCl/dioxane (5 ml) to solution of 5-Pyrimidin-2-yl-3′,6′-dihydro-2′H-[2,4′]bipyridinyl-1′-carboxylic acid tert-butyl ester (2Q) (110 mg, 0.325 mmol) in MeCl2 (5 ml) at room temperature, then stirred 4 hours. Evaporated solvent. Added MeCl2 (100 ml), H2O (50 ml) and 10% NaOH (3 ml). The organic layer was separated, dried over MgSO4, filtered and solvent evaporated yielding 3Q as a white solid (90 mg, 100%) ESMS (MH, 239) LCMS (MH, 239) Retention time=1.53 minutes.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08546404B2
Source datasetuspto-grants-2013_10
ORD IDord-539dd85ca07d474ca428259cc9e0c23d
Source noteuspto-grants-2013_10