Reaction Mechanism-3

what about others ?????

isn't the second one fries rearrangement sry if the name is wrong .

allyl ether rearrangement ??
the allyl grp comes to the meta wrt the amide grp .

in a) the O- attacks the Cl . S_N2 reaction na ?

for (a), i think we have an epoxide attack involved.....but just got to go now,,,i will try later ![1]