analyze the competing effects of piconjugation anesthetic re

analyze the competing effects of pi-conjugation anesthetic repulsion in the simple biaryl compounds bipheyl~2-2bipyrimidine

Analyze the competing effects of -conjugation and steric repulsion in the simple biaryl compounds biphenyl, gauche 2,2\'-bipyridine (gauche bpy). s-trans 2,2-bipyridine (s-trans bpy), and 2.2-bipyrimidine. biphenyl gauche-2,2-bipyridine s-trans 2.2\'-bipyridine 2.2-bipyrimidine

Solution

From left to right ,the numbering is 1,2,3,4.

the order of steric interaction

4>2>3>1

Then to reduce the steric interaction they will be nonplanar.

order of nonplanarity: 4>2>3>1

then pi -conjugation decreases and the order will be

4<2<3<1