Hi all,
I was looking at some reaction mechanism and have a few questions! Here they are:
Q1. When you attempt nitration with a benzene ring, i.e. using conc HNO
3 and conc H
2SO
4, you add on a NO
2 group. But when you have nitration with methylbenzene, is there anything preventing them forming onto the 2nd, 3rd or 4th carbon i.e. forming ortho-, meta- and para- derivatives, or is that dependant on the most stable form?
Q2. With 1-methyl,4-aminobenzene, apparently if you add sodium nitrite and conc. sulphuric acid, you produce 1-methyl,4-(a N
2+ group which I don't actually know how to name)benzene! Can anyone certify what actually happens in this mechanism?
Q3. Linking on to the product of 2., apparently if you use copper cyanide on that, you get 1-methyl,4-cyanobenzene. Is this a electrophilic substitution, and how would that mechanism work? I'm sure the delocalisation of the electron ring system reduces the power of the N
2+ group in Q2, but how would that allow the cyanide group to react?
Q4. Last and final question, linking on to 1-methyl,4-cyanobenzene, apparently you get 1-methyl,4-methylamide when you use LiAlH
4 and H
2O. Can someone show me how the mechanism works for that also? I'm not quite sure how the CH
2 group appears from, and how does having water *delete me*
Cheers! Who says chemistry isn't mindbogging?