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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 352137Generated: October 29, 2026

Methanol → [4-Hydroxy-4-(2-methoxy-3-pyridinyl)butyl]carbamic acid 1,1-dimethylethyl ester

https://huagongshe.com/reaction/352137

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantBoraneHCID 6331—
Reactant(R)-2-Methyl-CBS-oxazaborolidineHCID 9838490—
Reactant[4-(2-Methoxy-pyridin-3-yl)-4-oxo-butyl]-carbamic acid tert-butyl esterHCID 102539314—
SolventTetrahydrofuranHCID 8028—
Product[4-Hydroxy-4-(2-methoxy-3-pyridinyl)butyl]carbamic acid 1,1-dimethylethyl esterHCID 131724445—

Reaction Conditions

Temperature20 °C

Reaction Steps

Borane (0.7 ml, 1M in tetrahydrofuran) was added to a solution of (3aR)-tetrahydro-1-methyl-3,3-diphenyl-3H-pyrrolo[1,2-c][1,3,2]oxazaborole (0.05 ml, 1M in toluene) in tetrahydrofuran (2 ml) at 0° C. A solution of the product from step (a) above (0.304 g) in tetrahydrofuran (3 ml) was added over 20 minutes and then stirred at 0° C. for 4hand at 20° C. for 14 h. Methanol was added and the solution was evaporated and the residue azeotroped with methanol. Purification by chromatography on silica eluting with petrol-ether gave the sub-title compound as a colourless oil (0.255 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06743939B2
Source datasetuspto-grants-2004_06
ORD IDord-62178ffee6644b2eb0ba86da14db1c57
Source noteuspto-grants-2004_06