MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
chirrag nangia Grade: 11
        What is a protecting group

how can we recognise it
please give some examples
6 years ago

Answers : (3)

Sudheesh Singanamalla
114 Points
										

A protecting group or protective group is introduced into a molecule by chemical modification of a functional group in order to obtain chemoselectivity in a subsequent chemical reaction. It plays an important role in multistep organic synthesis.


 Protecting groups are used in synthesis to temporarily mask the characteristic chemistry of a functional group because it interferes with another reaction. 


i suggest you to view the following link for more information on protecting groups , it is mentioned very clearly.


http://www.chem.ucalgary.ca/courses/351/Carey5th/Ch17/ch17-3-4-3.html


 


Please approve !



6 years ago
vikas askiitian expert
510 Points
										

dear chirrag ,


i m explaning this with the help of an example  


                     o


                   //


CH0 - CH2 - C - CH3          =>         CHO - CH2 - CH(OH )- CH3 ,


if we want to carry out this conversion then the simplest way is to protect aldehyde group & then reduction of ketonic group will give desired product ...


 


for this , first step is protection of aldehyde group which is done by reaction with glycol (.CHOHCHOH) ..


  product of this reaction is acetal , then by LiAlH4 this c=0 group is reduced to alcohol n finally


by using few drops of acid , acetal again converts to aldehyde ...


 

6 years ago
Aiswarya Ram Gupta
35 Points
										

protecting group or protective group is introduced into a molecule by chemical modification of a functional group in order to obtain chemoselectivity in a subsequent chemical reaction. It plays an important role in multistep organic synthesis.

6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
Get extra Rs. 3,180 off
USE CODE: CART20
Get extra Rs. 424 off
USE CODE: CART20

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details