The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

reaction product

image-21e65e84-9f01-4f47-84ce-8e90fc14040d9011225696641541305-compressed.jpg.jpeg

does this react with HNO3? if yes, please help with structure of product
Original post by googie3
image-21e65e84-9f01-4f47-84ce-8e90fc14040d9011225696641541305-compressed.jpg.jpeg

does this react with HNO3? if yes, please help with structure of product


yes
benzene ring undergoes nitration
acidic HNO3 reacts with basic -NH2 group to form a salt
Reply 2
Avatar for googie3
googie3
OP
15
nitration and acid base neutralization both occur?
Original post by googie3
nitration and acid base neutralization both occur?


yes
Reply 4
Avatar for googie3
googie3
OP
15
Original post by BobbJo
yes


but conditions for nitration i.e. h2so4 and temperature are missing, so why nitration is occuring?
Original post by googie3
but conditions for nitration i.e. h2so4 and temperature are missing, so why nitration is occuring?

there are 2 phenolic hydroxyl groups

the OH groups attached to the benzene rings are activating groups. the lone pair on the O atom overlaps with the pi ring, increasing electron density in the ring and attracting electrophiles. the ring is more reactive. https://www.chemguide.co.uk/organicprops/phenol/background.html
Reply 6
Avatar for googie3
googie3
OP
15
Original post by BobbJo
there are 2 phenolic hydroxyl groups

the OH groups attached to the benzene rings are activating groups. the lone pair on the O atom overlaps with the pi ring, increasing electron density in the ring and attracting electrophiles. the ring is more reactive. https://www.chemguide.co.uk/organicprops/phenol/background.html


Thank you. It means OH as in phenol doesnt need specific conditions like benzene does?
Original post by googie3
Thank you. It means OH as in phenol doesnt need specific conditions like benzene does?

Yes. Phenol will react with dilute HNO3 at rtp while benzene reacts with conc H2SO4 + conc HNO3 at temperatures 50-60 degrees celsius for mononitration
Reply 8
Avatar for googie3
googie3
OP
15
Original post by BobbJo
Yes. Phenol will react with dilute HNO3 at rtp while benzene reacts with conc H2SO4 + conc HNO3 at temperatures 50-60 degrees celsius for mononitration


Thank you so much for the help.

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you