1: (i) NaN3, (ii) (heating), benzene, (iii) /BRN= 1718733/ 2: aq. KOH 3: (i) Py, NaNO2, aq. H2SO4, (ii) aq. NaBr, HgBr2 4: (i) PhLi, (ii) /BRN= 1900390/ View Scheme

1: (i) NaN3, (ii) (heating), benzene, (iii) /BRN= 1718733/ 2: aq. KOH 3: (i) Py, NaNO2, aq. H2SO4, (ii) aq. NaBr, HgBr2 4: (i) PhLi, (ii) /BRN= 1900390/ 5: SOCl2 6: LiAlH4 7: P2O5 / xylene View Scheme

ammonium hydroxide

thionyl chloride

1: (i) NaN3, (ii) (heating), benzene, (iii) /BRN= 1718733/ 2: aq. KOH View Scheme