Question
How can the following reaction be made to proceed in forward direction?
How can the following reaction be made to proceed in forward direction?
$$B{\left( {OH} \right)_3} + NaOH \rightleftharpoons NaB{O_2} + Na\left[ {B{{\left( {OH} \right)}_4}} \right] + {H_2}O$$
A.
addition of borax
B.
addition of $$cis{\text{ - 1, 2 - diol }}$$
C.
addition of $$N{a_2}HP{O_4}$$
D.
addition of $$trans{\text{ - 1, 2 - diol }}$$
Answer :
addition of $$cis{\text{ - 1, 2 - diol }}$$
Solution :
$$cis{\text{ - 1, 2 - diol }}$$ forms chelated complex ion with the product, $${\left[ {B{{\left( {OH} \right)}_4}} \right]^ - }$$ causing the reaction to proceed in forward direction.
$$cis{\text{ - 1, 2 - diol }}$$ forms chelated complex ion with the product, $${\left[ {B{{\left( {OH} \right)}_4}} \right]^ - }$$ causing the reaction to proceed in forward direction.