wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Match List-I with List-II

List-I
(Chemical reaction)
List-II
(Reagent used)
(a)CH3COOCH2CH3CH3CH2OH (i)CH3MgBr/H3O+
(1 equivalent)
(b) CH3COOHCH3CH3CHO (ii)H2SO4/H2O
(c) CH3CNCH3CHO
(iii)DIBALH/H2O
(d) CH3CNCH3COCH3 (iv) SnCl2,HCl/H2O





Choose the most appropriate match.

A
(a)(iii),(b)(ii),(c)(i),(d)(iv)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
(a)(iv),(b)(ii),(c)(iii),(d)(i)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
(a)(ii),(b)(iv),(c)(iii),(d)(i)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(a)(ii),(b)(iii),(c)(iv),(d)(i)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D (a)(ii),(b)(iii),(c)(iv),(d)(i)
(a) Ester get hydrolysed to respective acid and alcohol in presence of sulphuric acid.
CH3COOCH2CH3H2SO4−−−H2OCH3COOH+CH3CH2OH


(b) DIBAL-H will reduce esther group to aldehyde.
CH3COOCH3DIBALH−−−−−−H2OCH3CHO+CH3OH

(c)
This reaction is called stephen reaction. It involves the preparation of aldehydes from nitriles using tin(II) chloride, hydrochloric acid and quenching the resulting iminium salt with water. During the synthesis, ammonium chloride is also produced.

(d) When nitriles react with grignard reagent R from the grignard will undergo nulceophilic addtion reaction to form imine product.
Imine will undergo hydrolysis to form keto product.

So, the correct match is
(a)(ii),(b)(iii),(c)(iv),(d)(i)

Cyanides can also be converted to aldehydes by DIBALH/H2O as well.




flag
Suggest Corrections
thumbs-up
3
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Alkenes - Chemical Properties
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon