Piyush d last edited by
in option 4 lone pair is in resonance with the ring
but in 1st option only with oxygen
so how 4 Nitrogen is more nucleophillic than 1st or even 2nd?
yash todkar last edited by
@piyush-d In option 4 resonace will not take place or will be hard because ring will try to maintain its aromatic nature . In 1 and 2 resonace is not disturbing aromatic character of ring.