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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1741087Generated: October 31, 2026

1-Ethyl-1,2,3,6-tetrahydropyridine-4-methanol → 1'-Ethyl-2,3,6,7-tetrahydrospiro[furo[2,3-f]indole-3,4'-piperidine]

https://huagongshe.com/reaction/1741087

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-1,2,3,6-tetrahydropyridine-4-methanolHCID 21833764—
Reactant1-(6-Bromo-5-hydroxy-2,3-dihydro-1H-indol-1-yl)ethan-1-oneHCID 21948380—
Product1'-Ethyl-2,3,6,7-tetrahydrospiro[furo[2,3-f]indole-3,4'-piperidine]HCID 2183374445%

Reaction Steps

This was prepared from 1-acetyl-6-bromo-2,3-dihydro-1H-indol-5-ol (Tetrahedron, 1973, 29 (8), 1115) and 1-ethyl-1,2,3,6-tetrahydropyridine-4-methanol (D108), following the procedure of Description 8 (alternative preparation), steps a), b), and c). This gave the title compound (overall yield: 45%) as a fine grey powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05972951
Source datasetuspto-grants-1999_10
ORD IDord-c1b6dac6d55641e2af46456e7797745e
Source noteuspto-grants-1999_10