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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1612191Generated: October 31, 2026

4,5,6,7-Tetrahydro-4-oxothionaphthene → 4,5,6,7-Tetrahydro-1-benzothiophen-4-amine

https://huagongshe.com/reaction/1612191

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,5,6,7-Tetrahydro-4-oxothionaphtheneHCID 83418—
Reactant4,5,6,7-Tetrahydro-1-benzofuran-4-amineHCID 18525171—
Product4,5,6,7-Tetrahydro-1-benzothiophen-4-amineHCID 4216372—

Reaction Steps

Following the procedure for the preparation of 4,5,6,7-tetrahydro-1-benzofuran-4-amine but substituting 6,7-dihydro-1-benzothiophen-4(5H)-one and making non-critical variations provided the title compound as a oil: 1H NMR (400 MHz, CDCl3) δ 7.09, 7.02, 3.95, 2.79, 2.03, 1.85, 1.62; 13C NMR (100 MHz, CDCl3) δ 140.51, 137.18, 126.77, 122.66, 47.96, 34.24, 25.48, 21.48;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06992087B2
Source datasetuspto-grants-2006_01
ORD IDord-b300663d8bdc4ffcbe808d9c98e0762b
Source noteuspto-grants-2006_01