Select the alkyne from each pair that should be used to synthesize each of the following compounds The image illustrates the hydroboration-oxidation reaction of alkynes, outlining the transformation of alkyne compounds (I and II) into an aldehyde.**Reaction Details:****Starting Materials:**- **Compound I:** CH₃—C≡C—CH₃- **Compound II:** CH₃—CH₂—C≡CH**Reaction Conditions:**1. BH₃/THF (Borane-Tetrahydrofuran complex)2. OH⁻, H₂O₂, H₂O (Hydroxide ion, Hydrogen peroxide, Water)**Product:**- The product shown is an aldehyde: CH₃—CH₂—CH₂—C(=O)—HThe reaction involves the conversion of either alkyne I or alkyne II into the same aldehyde product through the addition of borane followed by oxidation. The product retains the carbon chain but introduces an oxygen functional group at the terminal position, converting a triple bond into a carbonyl group (aldehyde).

This is hydroboration oxidation.

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Select the alkyne from each pair that should be used to synthesize each of the following compounds

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter14: Aldehydes And Ketones

Section: Chapter Questions

Problem 14.55E: The addition of water to aldehydes and ketones occurs rapidly, although it is not thermodynamically...

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Concept explainers

Designing a Synthesis

Organic synthesis is a branch of chemical synthesis that involves the planned construction of organic compounds/molecules from smaller units that possess functional groups. Friedrich Wöhler was the first scientist who designed the synthesis of an organic compound, urea from inorganic starting materials silver cyanate with ammonium chloride via a simple, one-step synthesis.

Question

Select the alkyne from each pair that should be used to synthesize each of the following compounds

The image illustrates the hydroboration-oxidation reaction of alkynes, outlining the transformation of alkyne compounds (I and II) into an aldehyde.

**Reaction Details:**

**Starting Materials:**

- **Compound I:** CH₃—C≡C—CH₃
- **Compound II:** CH₃—CH₂—C≡CH

**Reaction Conditions:**
1. BH₃/THF (Borane-Tetrahydrofuran complex)
2. OH⁻, H₂O₂, H₂O (Hydroxide ion, Hydrogen peroxide, Water)

**Product:**
- The product shown is an aldehyde: CH₃—CH₂—CH₂—C(=O)—H

The reaction involves the conversion of either alkyne I or alkyne II into the same aldehyde product through the addition of borane followed by oxidation. The product retains the carbon chain but introduces an oxygen functional group at the terminal position, converting a triple bond into a carbonyl group (aldehyde).

Definition Definition Organic compounds that contain at least one triple bond between carbon-carbon atoms. The general molecular formula for alkynes with one triple bond is C n H 2n-2 .

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