Join now for JEE/NEET and also prepare for Boards Join now for JEE/NEET and also prepare for Boards. Register Now
Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
What is a protecting group how can we recognise it please give some examples What is a protecting group how can we recognise it please give some examples
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 !
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 !
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 ...
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 ...
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -