Part 3 The synthesis above used an aldehyde, but acetylene is the only allowed source of carbon atoms. Identify a reasonable synthetic route for the production of the needed aldehyde from acetylene. H-C?C-H -> ? -> CH3CH2CHO HC?CH --NaNH2--> --Br--> --1) R2BH / 2) H2O2/NaOH--> CH3CH2CHO HC?CH --NaNH2--> --Br--> --1) O3 / 2) DMS--> CH3CH2CHO HC?CH --NaNH2--> --Br--> --H2 Lindlar's catalyst--> --1) O3 / 2) DMS--> CH3CH2CHO HC?CH --NaNH2--> --Br--> --H2O, H2SO4 / HgSO4--> CH3CH2CHO
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