HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1910616Generated: November 3, 2026
Water → 1,2,3,4-tetrahydro-2-methyl-N-(2-(methylsulfonyl)-5-(piperazin-1-yl)phenyl)naphthalen-1-amine
https://huagongshe.com/reaction/1910616
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | HCID 58707335 | HCID 58707335 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1,2,3,4-tetrahydro-2-methyl-N-(2-(methylsulfonyl)-5-(piperazin-1-yl)phenyl)naphthalen-1-amine | HCID 58707267 | 92.2% |
Reaction Steps
A solution of N-(5-fluoro-2-(methylsulfonyl)phenyl)-1,2,3,4-tetrahydro-2-methylnaphthalen-1-amine (63.3 mg, 0.19 mmol), piperazine (328 mg, 3.79 mmol) and N,N-diisopropylethylamine (0.34 mL, 1.99 mmol) in N,N-dimethylformamide (3 mL) was stirred at 110° C. for 16 h. The reaction mixture was cooled down, poured over 10 mL of water and extracted with diethyl ether. After evaporation of solvent the crude product was purified by silica chromatography (10% methanol in dichloromethane) to yield 70 mg (92%) of desired product. 1H NMR (400 MHz, CDCl3): δ 7.61 (d, 1H), 7.29 (m, 1H), 7.14 (m, 3H), 6.46 (d, 1H), 6.27 (dd, 1H), 12.2 (d, 1H), 4.28 (t, 1H), 3.29 (m, 1H), 3.20 (m, 4H), 3.01 (m, 1H), 2.96 (m, 4H), 2.88 (s, 3H), 2.30-1.70 (m, 4H), 1.12 (d, 3H); MS (ESI) m/z: 400.1 (M++1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08604021B2 |
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| Source dataset | uspto-grants-2013_12 |
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| ORD ID | ord-382fbaa68c7449e19d70cc013dacfbe9 |
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| Source note | uspto-grants-2013_12 |
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