Question

Select all of the compounds that undergo electrophilic bromination (i.e. Br2, FeBr3) faster than benzene. CHE SOZH сон NO2 OCH CH3 -&-CH₃ CH3

Answer 1

(Brzife Brgy produces electrophile by following way : 4 vacent de orbitals of Iron Br Br + Br - teap ELECTROPHILE " 3 If electron releasing group present on benzene, then following resonating etructure will be considerd. CERCO GRG ERCY ERG 021 و ہو Para A

thus electron doneity comes at of the and para position and besirene dring is activated whore Bo can attack. when electron releas oup present, then compound become reactive toward electrophilic substitution. Following compounds are possessing electron. & crebas group and more reactive than benzene ! () CH3 Осно, CH3 ANSWER when compound contains electron with -drawing group it comes negative charge comes at meta-position whether positive charge comes at ortho

Ewy Ewy Ewy Thus only those compound having electron. - with drawing group gives meta product. 5 This is because of the reason than electron density at meta position is greater than orthol para position. as compounds having electron withdrawing groups are :- - CH3 NO 43 30