反应详情

2.15 g 4-Acetylsulfanyl-piperidine-1-carboxylic acid tert-butyl ester (272) were dissolved in 84 ml MeOH and treated with 2.1 g (55.5 mmol) sodium borohydride at 0° C. after stirring for 2 h at RT all volatiles were removed in vacuo and to the residue was added slowly water and 2.3 g (11 mmol) citric acid monohydrate. Extraction with dichloromethane, drying with Sodium sulfate and evaporation gave 1.78 g of crude 4-Mercapto-piperidine-1-carboxylic acid tert-butyl ester

1. customwere removed in vacuo and to the residue
2. extractionExtraction with dichloromethane
3. dry with materialdrying with Sodium sulfate and evaporation