Which of the following on reaction with exces | vedclass

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(C) When a formate ester $(H-COOR')$ reacts with excess Grignard reagent $(RMgX)$,it produces a secondary alcohol from the formate part and another al

Vedclass · Accepted Answer

$H-C(=O)-O-CH(CH_3)_2$

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(C) When a formate ester $(H-COOR')$ reacts with excess Grignard reagent $(RMgX)$,it produces a secondary alcohol from the formate part and another alcohol from the alkoxy part $(R'OH)$.Reaction: $H-COOR' + 2RMgX \xrightarrow{H_2O} R_2CH-OH + R'-OH$.In option $(C)$,$H-C(=O)-O-CH(CH_3)_2$ (isopropyl formate),the products are $R_2CH-OH$ (a $2^o$ alcohol) and $(CH_3)_2CH-OH$ (isopropanol,which is also a $2^o$ alcohol). Thus,it gives only $2^o$ alcohols.In options $(A)$ and $(D)$,the acetate part gives a $3^o$ alcohol.In option $(B)$,the alkoxy part gives a $1^o$ alcohol $(CH_3CH_2OH)$.

Which of the following on reaction with excess $RMgX$ will give only $2^o$ alcohol?

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