Question

Several reagents and several organic structures are shown below. Construct a multistep synthetic route for the synthesis of acetylene from ethane by dragging the appropriate pieces into the bins. Note that each bin will hold only one item, and not every given reagent or structure will be used. (Stoichiometry is omitted.)

Several reagents and several organic structures are shown below. Construct a multistep synthetic route for the synthesis of acetylene from ethane by dragging the appropriate pieces into the bins. Note that each bin will hold only one item, and not every given reagent or structure will be used. (Stoichiometry is omitted.)

Answer 1

Consider the complete mechanism for given reaction H3C CH3 (ethane) (acetylene) Reagent I Reagent 2 Reagent 3 Step 3 Reagent 4 Step 1 Product Step 2 ProductProduct CH2 CH2 Br CH2 CH (CH3) CO-K NaNH vy CH CH2 Step (1) Ethane is treated with bromine in the presence of sunlight. One atom of hydrogen is substituted with bromine and ethyl bromide and HBr formed. Step (2) The next step is elimination reaction in which ethyl bromide is treated with (CH) COK to form ethane Step (3) In the third step, ethane is treated with bromine water to form1,2 - dibrom oethane. Step (4) In the last step, 1,2 - dibromoeth ane is treated with NaNH, to form ethyne (acetylene)

Answer 2

Answer 3

Everything is correct except reagent 4. It should be (CH3)3CO^-K+