Geometrical isomerism of 2′-piperidinomethyl-5-arylidenecreatinines
The aminomethylation of 5-arylidenecreatinines with paraformaldehyde and piperidine in benzene leads to 2′-piperidinomethyl-5-arylidenecreatinines, in which the geometrical isomerism in relation to the C(2) = N(2′) and C(5) = C bonds was observed.