Home
Class 12
CHEMISTRY
An SN^2 reaction at an asymmetric C of...

An `SN^2` reaction at an asymmetric C of a compound always gives:

A

An enantiomer of the substrate

B

A product with opposite optical rotation

C

A mixture of diastereomers

D

A single stereoisomer

Text Solution

Verified by Experts

The correct Answer is:
D

`SN^2 ` reaction proceeds with the inversion of configuration, hence, only one stereoisomer is obtained.
Promotional Banner

Similar Questions

Explore conceptually related problems

An SN _2 reaction at an asymmetric carbon of a compound always gives

Compound A on reaction with Cl_(2) , Fe Cl_(3) forms a compound B, compound B on reaction with Sn and HCl froms m-chloroaniline. The compound A is :

CH_(3)COOC_(2)H_(5) on reaction with sodium ethoxide gives a compound ‘X’ which on hydrolysis in presence of acid gives another compound ‘Y’ which on heating gives ‘Z’. Which of the following are X, Y, and Z respectively?

A compóund A with molecular formula C_4 H_10O . on oxidation forms compound B. The compound B gives positive iodoform test. Compound B on reaction with CH_3 MgBr followed:by hydrolysis gives: C. Identify A, Band C and give the sequence of reactions.

Compounds A and B are isomers with formula C_2 H_4 Cl_2 . On treatment with aq. KOH, A gives a compound C which liberates ' H_2' gas on treatment with Na metal, B on treatment with aq.NaOH produces D which answers iodoform test. Give the structures of A,B,C and D and write the chemistry of reactions.

Nucleophilic substitution reactions are of two type - S_N^1 reaction and S_N^2 reaction.Write any two reasons for the less reactivity of aryl halides towards nucleophil subsitution reactions.

CH_(3)CO_(2)C_(2)H_(5) on reaction with sodium ethoxide in ethanol gives (A), which on heating in the presence of ac gives (B). Compound (B) is:

Some information regardirg a particular, compound is given below. i) A deep.purple black crystal which' is moderately soluble in water at room temperature and it is prepared from pyrolusite a) İdentify the compound b) Give the chemical reactions involved in the preparation of,this compound - c) Upon heating to 746 K, what happens to this compound? Give the equation

Most important chemical reactions of halo alkanes are their subsititution reactions. Arrange the front isometic brormobutanes in the increasing order of their reactivity towards S_N^1 reaction.