Piperidin-4-ol → HCID 178511974, compound

Participants

Reaction Steps

A mixture of 2'-fluoro-2-biphenylylcyanamide (2.5 g) and 4-hydroxypiperidine (1.4 g) in ethanol (30 ml) was heated at reflux on a steam bath for 2 hours gave a yellow foamy solid which was reacted with fumaric acid (1.3 g) in methanol (10 ml) to give N-(2'-fluoro-2-biphenylyl)-4-hydroxypiperidine-1-carboxamidine fumarate as a colourless solid (m.p. 214°-215° C.) which was recrystallised from a 1:2 mixture of methanol and ether.

Provenance & Evidence