Compounds that contain a carbon-nitrogen double bond are capable of stereoisomerism much like that seen in alkenes. The structures

are stereoisomeric. Specifying stereochemistry in these systems is best done by using E-Z descriptors and considering the nitrogen lone pair to be the lowest priority group. Write the structures or build molecular models, clearly showing stereochemistry, of the following:
(a) (Z)-CH3CH==NCH3
(b) (E)-Acetaldehyde oxime
(c) (Z)-2-Butanone hydrazone
(d) (E)-Acetophenone semicarbazone

Transcribed Image Text:

R х and R' х