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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1525930Generated: November 3, 2026

Methanol → Tert-butyl 4-((ethylamino)methyl)-4-hydroxypiperidine-1-carboxylate

https://huagongshe.com/reaction/1525930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthylamineHCID 6341—
Reactanttert-Butyl 1-oxa-6-azaspiro(2.5)octane-6-carboxylateHCID 22135564—
ProductTert-butyl 4-((ethylamino)methyl)-4-hydroxypiperidine-1-carboxylateHCID 39359816—

Reaction Conditions

Temperature100 °C

Reaction Steps

Into a 100 mL round bottom flask was placed tert-butyl 1-oxa-6-azaspiro[2.5]octane-6-carboxylate (2 g, 9.38 mmol). To this was added 2M ethanamine in methanol (23.44 ml, 46.9 mmol). A condenser was attached to the flask and the solution was stirred at reflux (100° C.) overnight. The solution was cooled and concentrated in vacuo to afford the title compound (2.4 g) which was carried forward without further purification. MS(ES)+ m/e 259.1 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09084794B2
Source datasetuspto-grants-2015_07
ORD IDord-837aa4d0c1834182be716f3b835dfd0a
Source noteuspto-grants-2015_07