(a) Give the Claisen ester condensation ...

(a) Give the Claisen ester condensation product of ethyl butanoate.
(b) Why does the Claisen ester condensation of ethyl-2-methyl propanoate `(I)` not take place ?
( c) Why does Claisen condensation of `(I)` take place by the use of `Ph_3 C^(Ө) Na^(oplus)` as a base ?

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(a) Give the Claisen ester condensation product of ethyl butanoate. (b) Why does the Claisen ester condensation of ethyl-2-methyl propanoate `(I)` not take place ? ( c) Why does Claisen condensation of `(I)` take place by the use of `Ph_3 C^(Ө) Na^(oplus)` as a base ?

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(a) Give the Claisen ester condensation product of ethyl butanoate.
(b) Why does the Claisen ester condensation of ethyl-2-methyl propanoate `(I)` not take place ?
( c) Why does Claisen condensation of `(I)` take place by the use of `Ph_3 C^(Ө) Na^(oplus)` as a base ?