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Pick the letters representing the reaction to fill in the blank Look at the give

ID: 497390 • Letter: P

Question

Pick the letters representing the reaction to fill in the blank

Look at the given synthesis and the provided reagents. Fill in the blanks with the single letter code of the appropriate reagent, or the appropriate descriptive vocabulary word/phrase for non-reagents to complete the synthesis and description. Remember the computer is very literal so check your spelling carefully! First we add reagent to form the molecule (IUPAC name). Then reagent to form a functional group in a reaction. This can be converted to a functional group by first adding reagent in a mechanism then following up with reagent to give the desired group via a reaction. A(n) (oxidation, reduction, substitution, hydrolysis, other) with reagent will give the functional group, which can be reacted first with followed by reagent workup to give the desired product.

Explanation / Answer

First we add reagent Br2, hv to form the molecule 1,4-dibromobutane. Then reagent LiAlH4, THF to form a bromo functional group in a reduction reaction. This can be converted to a functional group alkene by first adding reagent CH3CH2ONa, CH3OH in a E1 mechanism then following up with reagent H2O, H2SO4 to give the desired group via a hydration reaction. A(n) oxidation with reagent CrO3, H2SO4, H2O willgive the functional group ketone, which can be reacted first with CH3CH2MgBr, ether followed by reagent H2O, H2SO4 work-up to give the desired product.