guys just did 2015 paper what the hell! they cant pack soo many questions in one paper. so manny questions required soooo much time just for 1-2 marks, ridicilious! at least make the nmr qs easy.
Do we have to know that phenol reacts with hydroxide ion(s) to form water and a phenoxide ion? I understand that phenol will react with metallic alkali's like NaOH, but was just curious as to whether need to know.
For the last NMR question in RPA June 2013 can anyone explain why there are only 3 peaks in the hydrogen NMR spectrum? I get the 2 environments attached to the side chain, but I make 3 environments out of the benzene ring not 1? Thanks
For the last NMR question in RPA June 2013 can anyone explain why there are only 3 peaks in the hydrogen NMR spectrum? I get the 2 environments attached to the side chain, but I make 3 environments out of the benzene ring not 1? Thanks
I suppose the reaction is still done in acidic conditions so NH3 reacts? I think if you ever see an acid involved in a reaction with a compound that has an NH or NH2 on, its going to react too NH2+ or NH3+
Sorry but in 4-aminophenol ( https://gyazo.com/28ae388c73b6a5f851cee6dd42f8d250 ) when it accepts a proton does it form a covalent or ionic bond? i was thinking about it forming a dative covalent bond with the hydrogen due to its lone pair, is this right? cos then again it goes to NH3+ doesnt it?
Also how does it act as a base (in the question) if the lone pair of electrons are delocalised into the ring?
and for your second question presumably the oxygen atom is more electronegative than the nitrogen atom, so the lone pair of electrons on oxygen atoms are delocalised into the ring which means the nitrogen has a long pair of electrons that are able to accept the proton.