When phenol is treated with D2SO4/D2O, some of the hydrogens get exchanged. The final product in this exchange reaction is

Question

When phenol is treated with D2SO4/D2O, some of the hydrogens get exchanged. The final product in this exchange reaction is (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

In acidic medium, phenol exists in following resonating structures.

Since, o / p positions are electron rich sites, so electrophile will attack on these site, i.e., hydrogen of these sites get exchanged by D (deuterium). Hence, the final product of the

Q. When phenol is treated with $D_{2} S O_{4} / D_{2} O$ , some of the hydrogens get exchanged. The final product in this exchange reaction is

In acidic medium, phenol exists in following resonating structures.

Since, $o / p$ positions are electron rich sites, so electrophile will attack on these site, i.e., hydrogen of these sites get exchanged by $D$ (deuterium). Hence, the final product of the

Q. When phenol is treated with D2​SO4​/D2​O, some of the hydrogens get exchanged. The final product in this exchange reaction is

In acidic medium, phenol exists in following resonating structures. Since, o/p positions are electron rich sites, so electrophile will attack on these site, i.e., hydrogen of these sites get exchanged by D (deuterium). Hence, the final product of the

Q. When phenol is treated with $D_{2} S O_{4} / D_{2} O$ , some of the hydrogens get exchanged. The final product in this exchange reaction is

In acidic medium, phenol exists in following resonating structures.

Since, $o / p$ positions are electron rich sites, so electrophile will attack on these site, i.e., hydrogen of these sites get exchanged by $D$ (deuterium). Hence, the final product of the