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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 272952Generated: October 30, 2026

Water → (4-{4-[(1-isopropylpiperidin-4-yl)oxy]phenyl}tetrahydro-2H-pyran-4-yl)methylamine

https://huagongshe.com/reaction/272952

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant4-[4-(1-Isopropylpiperidin-4-yloxy)phenyl]tetrahydropyran-4-carbonitrileHCID 11500842—
ReactantAluminium lithium hydrideHCID 21226445—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
Product(4-{4-[(1-isopropylpiperidin-4-yl)oxy]phenyl}tetrahydro-2H-pyran-4-yl)methylamineHCID 68576458102.2%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a stirred solution 4-[4-(1-isopropylpiperidin-4-yloxy)phenyl]tetrahydropyran-4-carbonitrile (2.5 g, 7.62 mmol) in dry diethyl ether (15 ml) at 0° C. was added dropwise a solution of LiAlH4 (1.0M solution in Et2O, 22.87 ml, 22.9 mmol). Reaction stirred at 0° C. for 30 min, then warmed up to ambient temperature overnight under a nitrogen atmosphere until complete. The reaction was cooled to 0° C., water (0.9 ml) was added dropwise followed by sodium hydroxide (2.0M, 0.9 ml) and water (2.7 ml). Dichloromethane (25 ml) and methanol (1 ml) were added and the mixture filtered through a short pad of arbocel, eluting with 2% methanol in dichloromethane (200 ml). The organic washings were dried over Na2SO4 and concentrated in vacuo to give the title compound as an orange oil (2.59 g, 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456164B2
Source datasetuspto-grants-2008_11
ORD IDord-8112c4305d5b4f2d940ba43ab719bb31
Source noteuspto-grants-2008_11