Spontaneous transformation means that there's obviously a stabilizing (read : six membered) transition state and some quick tautomerization involved. I'd put my money on b) being the answer in that case.
Following compound A spontaneously changes into
http://img846.imageshack.us/i/51646289.png/
ONE OR MORE THAN ONE OPTIONS MAY BE CORRECT.
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8 Answers
Could you upload the image to a site other than imageshack??
Could you upload the image to a site other than imageshack??
ROFL hahahaha
After the tautomerisation has taken place according to Pritish Bhaiyya ' s mechanism , obviously there will be a development of " negative charge " on the " α " carbon and a development of " positive charge " on the " β " carbon . Since " - N H 2 " is an electron releasing group , hence it ' ll try to stick to the " β " carbon only , because if it doesn't , then the density of " negative charge " on the " electropositive carbon atom " would increase . Hence , I think " ( b ) " is the correct option .