Question

Reactant The reactant is (A) "mor" Willa OH OH (D) "OH OH

Answer 1

B77 Reactant + CO2 Reactant is a) Ans - - [of This reaction is. Decarboxylation p-keto acids ] ß - keto acids are very unstable and readily undergo the elimination of carbon dioxide under mild condition. Ketones are - obtained in this reactions - Decarboxylation occurs readily whenever a carboxyl group is bonded to the a carbon of another carbonyl group for 2 reasons. 1st the oxygen of the ß-keto function is ideally positioned to bond with the carboxyl 'M' forming a cyclic six-atom transition State - and is transition state has aromatic Character because of three electron pair, cs Scanned with CamScanner

Shift around the cyclik Sixectam aryay. - Cool is formed which tautomerizes rapidly to the final ketone group. option al c, d are not the correct - options, because they don't have - keto group for Decarboxylation so the option a, c, d are eliminated. optim 3' is Mechaniem connect option Chaving ß-Keto group) for this reaction 0 0 no Heat -coz tautomerization option, and This reactant option of B the is comect reaction Ics Scanned with__ CamScanner

This reaction is Decarboxylation of beta - keto acid .

Beta - keto acids are very unstable and readily undergo the elimination of carbon dioxide under mild condition.

Option A,C,D are eliminated because they don't have beta keto group .

Option B is the correct option for the reaction , and have beta- keto group for Decarboxylation of acid .