Reaktion #464275
ord-c435679d806244d58f5f7ddef198b09b
Reaktionsgleichung
Reagenzien
Lösungsmittel
Reaktionsbedingungen
Aufarbeitung
- 1TemperaturThe reaction mixture was heated
- 2Temperaturat reflux for 14 hours
- 3SonstigeThe white suspension obtained
- 4Einengensubsequently concentrated
- 5workup.ADDITIONMethanol was added to the residue
- 6Einengenthe suspension was concentrated
Vorschrift
A 1.0 M solution of borane in tetrahydrofuran (250 mL, 260 mmol.) was added slowly dropwise to a suspension of trans-4-(aminomethyl)cyclohexanecarboxylic acid (10.0 g, 64.0 mmol.) in tetrahydrofuran (250 mL). Gas evolution was observed. The reaction mixture was heated at reflux for 14 hours. The resulting solution was cooled to 0° C. and carefully treated dropwise with 1 N methanolic hydrochloric acid (250 mL). Gas evolution was observed. The white suspension obtained was stirred for 1 hour at 23° C. and subsequently concentrated. Methanol was added to the residue and the suspension was concentrated. This procedure was repeated twice to give trans-4-(Aminomethyl)cyclohexanemethanol hydrochloride (10.6 g, 93% yield) as a white solid.