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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1612197Generated: October 25, 2026

5-Methyl-4,5,6,7-tetrahydro-1-benzothiophen-4-amine → 3,6-diethyl-N-(5-methyl-4,5,6,7-tetrahydro-1-benzothien-4-yl)pyrazin-2-amine

https://huagongshe.com/reaction/1612197

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Methyl-4,5,6,7-tetrahydro-1-benzothiophen-4-amineHCID 20348929—
Reactant(1R,2S)-1-[(3,6-diethylpyrazin-2-yl)amino]-2,3-dihydro-1H-inden-2-olHCID 58583341—
Product3,6-diethyl-N-(5-methyl-4,5,6,7-tetrahydro-1-benzothien-4-yl)pyrazin-2-amineHCID 22147257—

Reaction Steps

Following the procedure for the preparation of (1R,2S)-1-[(3,6-diethylpyrazin-2-yl)amino]-2,3-dihydro-1H-inden-2-ol but substituting 5-methyl-4,5,6,7-tetrahydro-1-benzothien-4-ylamine and making non-critical variations provided the title compound as a oil: 1H NMR (400 MHz, CDCl3) δ) 7.66, 7.07, 6.91, 6.83, 5.62, 5.15, 4.46, 4.35, 3.09, 2.65-2.55, 2.28, 2.06-1.97, 1.80, 1.29, 1.11, 1.01; (MS/CI) calcd for C17H23N3S+H 301.6, found 301.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06992087B2
Source datasetuspto-grants-2006_01
ORD IDord-7d6062eb197147b39a09281f6dd0bf5b
Source noteuspto-grants-2006_01