Give the decreasing order of reactivity of the following alkyl halides in the Williamson’s reaction.
$i . {(C H_{3})}_{3} C - C H_{2} B r$
$i i . C l C H_{2} C H = C H_{2}$
$i i i . C l C H_{2} C H_{2} C H_{3}$
$i v . B r C H_{2} C H_{2} C H_{3}$

Question

Give the decreasing order of reactivity of Diels-Alder reactions the following -IV- - -III- - -I- - -II-I- - -II- - -III- - -IV-II- - -I- - -III- - -IV-IV- - -III- - -II- - -I-

Toppr Admin · Accepted Answer

The decreasing order of reactivity of Diels-Alder reactions is $(I V) > (I I I) > (I I) > (I)$ .

The Diels-Alder reaction proceeds faster when dienophiles have electron-withdrawing groups and dienes have an electron-donating group.

Hence, the correct option is B.

Give the decreasing order of reactivity of Diels-Alder reactions for the following :(IV) > (III) > (I) > (II)(I) > (II) > (III) > (IV)(II) > (I) > (III) > (IV)(IV) > (III) > (II) > (I)

The decreasing order of reactivity of Diels-Alder reactions is (IV)>(III)>(II)>(I).The Diels-Alder reaction proceeds faster when dienophiles have electron-withdrawing groups and dienes have an electron-donating group.Hence, the correct option is B.

Give the decreasing order of reactivity of Diels-Alder reactions for the following :

(IV) > (III) > (I) > (II)
(I) > (II) > (III) > (IV)
(II) > (I) > (III) > (IV)
(IV) > (III) > (II) > (I)

The decreasing order of reactivity of Diels-Alder reactions is $(I V) > (I I I) > (I I) > (I)$ .

The Diels-Alder reaction proceeds faster when dienophiles have electron-withdrawing groups and dienes have an electron-donating group.

Hence, the correct option is B.