반응 #67172

반응 방정식

[(2S)-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate

propan-1-amine

→

N-{[(2R)-7-(METHYLSULFONYL)-2,3-DIHYDRO-1,4-BENZODIOXIN-2-YL]METHYL}-PROPAN-1-AMINE

용매

ACN

반응 조건

후처리

1. 1
   기타Purification on SCX-3 column (TEA/MeOH) and flash column chromatography (EtOAc/MeOH)
2. 2
   기타crystallized from MeOH/Et2O
3. 3
   기타[α]=+67° (MeOH)

실험 절차

A mixture of [(2S)-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate (0.7 g, 1.8 mmol), propan-1-amine (1 ml) and ACN (3 ml) was heated under microwave radiation at 120° C. for 20 min. Purification on SCX-3 column (TEA/MeOH) and flash column chromatography (EtOAc/MeOH). Yield: 0.4 g, 73%. The amine was converted to the hydrochloric acid salt and crystallized from MeOH/Et2O. M.p. 228° C. MS m/z (rel. intensity, 70 eV) 285 (M+, 3), 207 (4), 73 (5), 72 (bp), 70 (5). [α]=+67° (MeOH).

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