Instructions

PARAGRAPH 2

Treatment of compound O with $$KMnO_4/H^+$$ gave P, which on heating with ammonia gave Q. The compound Q on treatment with $$Br_2/NaOH$$ produced R. On strong heating, Q gave S, which on
further treatment with ethyl 2-bromopropanoate in the presence of KOH followed by acidification, gave a compound T.