Atom economy

ii

. Suggest a reactant, other than a different acid, that could be used to improve the atom economy of making 1-bromobutane by the same method.

6. 1-Bromobutane (M, (136.9) can be made from a reaction of butan-1-ol, C4H9OH, as shown in the equation below.
C4h9oh + h2so4 +kbr --> c4hbr + khso4 +h2o

i. Calculate the atom economy for the formation of 1-bromobutane in this reaction.


And the ans for this os 47%
I got this ans and im not sure about the 2nd part

Atom economy basically means how much of the reactants end up in the desired product(s). So to improve the atom economy, you could make some sort of modification that results in fewer side products being formed – perhaps you might use fewer reactants to enable the reaction to proceed via a slightly different mechanism.

A good page here: https://www.chemguide.co.uk/organicprops/haloalkanes/making.html

See if you can suggest something

Atom economy basically means how much of the reactants end up in the desired product(s). So to improve the atom economy, you could make some sort of modification that results in fewer side products being formed – perhaps you might use fewer reactants to enable the reaction to proceed via a slightly different mechanism.

A good page here: https://www.chemguide.co.uk/organicprops/haloalkanes/making.html

See if you can suggest something

I guess Nabr or LiBr