Consider the following anions. When attached to `sp^(3)` -hybridized carbon , their leaving group ability in nucleophlic substittion reaction decreases in the order :
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Consider the following nucleophiles When attached to sp^(3)-hybridized carbon, their leaving group ability in nucleophilic substitution reactions decreases in the order :
Consider the following anions. (I) CF_(3)-overset(O)overset(||)underset(O)underset(||)(S)-O^(-) (II) C_(6)H_(5)-overset(O)overset(||)underset(O)underset(||)(S)-O^(-) (III) (IV) CH_(3)-overset(O)overset(||)(C)-O^(-) When attached to sp^(3) -hybridized carbon, their leaving group ability in nucleophilic substitution reactions decreases in the order
Which of the following compounds contain only sp^3 hybridized carbon ?
Which of the following atoms/groups exerts -I effect when attached to a carbon atom?
Nuclephilic substitution reaction is given by those compounds which have nucleophilic groups as leaving groups. The weaker the basicity of a group of the substrate, the better is its leaving ability. In nucleophilic substitution reactions, the basicity of leaving group should be less than the incoming nucleophilic group. Nucleophilc substitution reaction at sp^(3) -hybridised carbon is either bimolecular (S_(N^(2))) or unimolecular (S_(N^(1))) . Bimolecular reaction takes place in single step, involving transition state intermediate. In S_(N^(2)) reaction is preferred if the compound has less steric hindrance. Unimolecular (S_(N^(2))) reaction involves two steps and carbonium ion intermediate. Optically active substrates give recemic mixture in these reactions. Which among the following will give S_(N^(1)) reaction?
