Reaktion #67236

ord-a2342d496f994bcb9b8481fa4c1578d2

Reaktionsgleichung

Cc1ccc(S(=O)(=O)OC[C@H]2COc3c(Cl)cc(S(C)(=O)=O)cc3O2)cc1
[(2R)-5-chloro-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate
C1CCNCC1
piperidine
→
CS(=O)(=O)c1cc(Cl)c2c(c1)O[C@@H](CN1CCCCC1)CO2
title compound
Ausbeute 81.5%
CS(=O)(=O)c1cc(Cl)c2c(c1)O[C@@H](CN1CCCCC1)CO2
1-{[(2S)-5-CHLORO-7-(METHYLSULFONYL)-2,3-DIHYDRO-1,4-BENZODIOXIN-2-YL]METHYL}PIPERIDINE
Ausbeute 81.5%

Edukte

Cc1ccc(S(=O)(=O)OC[C@H]2COc3c(Cl)cc(S(C)(=O)=O)cc3O2)cc1
[(2R)-5-chloro-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate
C1CCNCC1
piperidine

Reagenzien

Keine

Lösungsmittel

CO
MeOH

Reaktionsbedingungen

Temperatur
120°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigePurification on SCX-3 column (TEA/MeOH)

Vorschrift

A mixture of [(2R)-5-chloro-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate (0.49 g, 1.1 mmol), piperidine (1 ml, 10.1 mmol) and MeOH (2 ml) was heated under microwave radiation at 120° C. for 25 min. Purification on SCX-3 column (TEA/MeOH) and by flash column chromatography (MeOH/EtOAc) gave the title compound (0.31 g). The amine was converted to the hydrochloric acid salt and crystallized from MeOH/Et20 (0.25 g). MS m/z (rel. intensity, 70 eV) 345 (M+, 0.5), 124 (3), 99 (7), 98 (bp), 96 (2), 55 (4) [α]=−60° (MeOH).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08524766B2uspto-grants-2013_09