1: (i) LiAlH4, (ii) aq. NaOH 2: aq. HBr, H2SO4 3: (i) Na, (ii) aq. KOH, (iii) (decarboxylation) 4: (i) SOCl2, (ii) H2O2, Py, (iii) /BRN= 1565260/, AcOH View Scheme

(i) LiAlH4, (ii) aq. NaOH; Multistep reaction;