Isomerism and StereochemistrymediumMCQ MULTIPLE

Consider the specialized stereochemical descriptors 'Syn' and 'Anti'. To which of the following specIsomerism and Stereochemistry Chemistry Question

Question

Consider the specialized stereochemical descriptors 'Syn' and 'Anti'. To which of the following specific classes of restricted rotatory systems are these terms formally applied to describe geometrical isomerism?

Answer: A,B,D

💡 Solution & Explanation

The 'Syn' and 'Anti' nomenclature system is specifically reserved for molecules containing stereogenic nitrogen atoms, where lone pairs serve as pseudo-substituents. This applies classically to aldoximes ($R-CH=N-OH$), ketoximes ($R-C(R')=N-OH$), and azo compounds ($R-N=N-R'$). Standard alkenes strictly utilize the E/Z or Cis/Trans systems.

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