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An organic compound (A),C_(8)H_(4)O_(3) in dry benzene in the presence of anhydrous AlCl_(3) gives ,compound (B). The compound (B) on treatement with PCl_(5) followed by reaction with H_(2)//Pd-BaSO_(4) gives compound C, which on reaction with hydrazine gives a cyclised compound (D) of formula C_(14)H_(10)N_(2). Identify (A),(B),(C ) and (D). Explain the formation of (D) and (C ). |
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