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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 851193Generated: November 2, 2026

Phenol, 3-(1,1-dimethylethyl)- → 8-(1,1-Dimethylethyl)-1,2,3,4-tetrahydro-5H-[1]benzopyrano[3,4-c]pyridin-5-one

https://huagongshe.com/reaction/851193

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenol, 3-(1,1-dimethylethyl)-HCID 11450—
ReactantMethyl 4-oxopiperidine-3-carboxylate hydrochlorideHCID 2724028—
Product8-(1,1-Dimethylethyl)-1,2,3,4-tetrahydro-5H-[1]benzopyrano[3,4-c]pyridin-5-oneHCID 1313692157.1%

Reaction Steps

Prepared by the method described for Example 1 from 3-t-butylphenol (15 g, 0.1 moles) and methyl 4-oxo-3-piperidinecarboxylate hydrochloride (19.3 g, 0.1 moles). Recrystallization from ethyl acetate gave the product (14.7 g), mp 181°-186° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04382939
Source datasetuspto-grants-1983_05
ORD IDord-64348656756e474b9b39a0f55fc8c9f7
Source noteuspto-grants-1983_05