CH_2(CO_2Me)_2 + ? xrightarrow[(i) Na]{(ii) | vedclass

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(C) The reaction involves the formation of a carbanion from dimethyl malonate $(CH_2(CO_2Me)_2)$ using sodium $(Na)$.The carbanion $Na^+[CH(CO_2Me)_2]

Vedclass · Accepted Answer

$ClCO_2Me$

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(C) The reaction involves the formation of a carbanion from dimethyl malonate $(CH_2(CO_2Me)_2)$ using sodium $(Na)$.The carbanion $Na^+[CH(CO_2Me)_2]^-$ acts as a nucleophile.This nucleophile attacks the electrophilic carbon of methyl chloroformate $(ClCO_2Me)$.The reaction proceeds as follows:$CH_2(CO_2Me)_2 + Na \rightarrow Na^+[CH(CO_2Me)_2]^- + \frac{1}{2}H_2$$Na^+[CH(CO_2Me)_2]^- + ClCO_2Me \rightarrow CH(CO_2Me)_3 + NaCl$Thus,the missing reactant is $ClCO_2Me$.

$CH_2(CO_2Me)_2 + ? \xrightarrow[(i) \ Na]{(ii) \ AcOH} CH(CO_2Me)_3$
Which of the following reactants will complete the above reaction?

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$CH_2(CO_2Me)_2 + ? \xrightarrow[(i) \ Na]{(ii) \ AcOH} CH(CO_2Me)_3$Which of the following reactants will complete the above reaction?