Hydrogen Bromide → HCID 131715860, compound

Participants

Reaction Steps

In an acetic acid solution (5 ml) of 25% hydrogen bromide was dissolved 8-benzyloxycarbonyl-2-methoxy-2,8-diazaspiro[4,5]decane-3-thion-1-one (0.5 g), and the solution was left standing at room temperature for 20 minutes. To the solution was added ethyl ether (100 ml), and resulting precipitates were collected by filtration, followed by recrystallization from ethanol to obtain 0.4 g of a pale yellow solid, m.p. 235° to 237° C.

Provenance & Evidence