1Nucleophilicity is the ability of an atom to donate an electron. Basicity is the ability of an atom to abstract a proton. Nitrogen being less electronegative than Oxygen, can donate an electron. So it has high nucloephilicity.
CH3COCl + Nu- → CH3CONu +Cl-
reactivity order of different nucleophiles towards this reaction is
a. NH2- < CH3COO- < OH-
b. CH3COO- < OH- < NH2-
c. NH2- < OH- < CH3COO-
d. CH3COO- < NH2- < OH-
which is correct and why???
PLZZ HELP..
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7 Answers
1it is b
NH2 is a strong nucleophile while OH- is a poor nucleophile
1YA ..
ans is (b)
But I don"t remember the basic thing behind nucleophilicity order..
CAN ANYONE PLZ EXPLAIN THE REASON FOR THIS ORDER...
1
39Nucleophilicity is the ability of an electron-rich atom to attack a positively(partially or fully) charged carbon. It is measured by the reaction's rate constant. Basicity is the atom's ability to abstract a proton. It is measured in terms of equilibrium constant Kb.
11As the electronegativity increases, nucleophilicity decreases.
So, OH- < NH2-
CH3COO- is a stable anion , hence it is least nucleophilic .