In each reaction box, place the best reagent and conditions from the list below. Hint: An alkyne will be an intermediate in this multistep synthesis.
1) Br2
2) excess NaNH2, then H2O
3) BH3/THF
4) H2O2, NaOH, H2O
explanation:
step 2 cannot use 2 equiv. NaNH2 since it gives a mixture. NaNH2
not only can eliminate HBr, but also can deprotonate the terminal
alkyne.
step 3 and 4 is hydroboration-oxidation reaction that can convert
terminal alkyne to aldehyde.
In each reaction box, place the best reagent and conditions from the list below. Hint: An...
In each reaction box, place the best reagent and conditions from the list below. Hint: An alkyne will be an intermediate in this multistep synthesis.
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In each reaction box, place the best reagent and conditions from the list below. If you reduce the alkyne in step 3, you would need six steps overall to produce the final carboxylic acid. In each reaction box, place the best reagent and conditions from the list below. If you reduce the alkyne in step 3, you would need six steps overall to produce the final carboxylic acid.
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In each reaction box, place the best reagent and conditions from the list below. alkyne to epoxide
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