Draw the major organic product for the reaction. H2O cat. TFOH -H-

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Organic Chemistry Reaction Overview:**

The task is to identify and draw the major organic product formed in the given chemical reaction.

**Reaction Details:**

1. **Reactants:**
   - The primary reactant appears to be a terminal alkyne with a branched alkyl group.
   - The alkyne is identifiable by the presence of a triple bond between two carbon atoms, with one hydrogen atom attached to the terminal carbon.

2. **Reagents and Conditions:**
   - Water (\( \text{H}_2\text{O} \)) is involved as a reactant.
   - The presence of a catalyst is indicated, specifically trifluoromethanesulfonic acid (TfOH).

**Expected Product:**

In the presence of water and an acid catalyst like TfOH, an alkyne will typically undergo hydration to form a ketone through keto-enol tautomerization. The major product in this reaction is likely a ketone where the addition of water across the triple bond results in the formation of a carbonyl group (C=O).

The reaction proceeds as follows:
- The alkyne reacts with water, adding an -OH group and hydrogen across the triple bond.
- The resulting alcohol (enol form) quickly tautomerizes to form a ketone.

**Conclusion:**

For this specific reaction, predict and draw the structure of the ketone formed when the alkyne is hydrated in the presence of triflic acid.
Transcribed Image Text:**Organic Chemistry Reaction Overview:** The task is to identify and draw the major organic product formed in the given chemical reaction. **Reaction Details:** 1. **Reactants:** - The primary reactant appears to be a terminal alkyne with a branched alkyl group. - The alkyne is identifiable by the presence of a triple bond between two carbon atoms, with one hydrogen atom attached to the terminal carbon. 2. **Reagents and Conditions:** - Water (\( \text{H}_2\text{O} \)) is involved as a reactant. - The presence of a catalyst is indicated, specifically trifluoromethanesulfonic acid (TfOH). **Expected Product:** In the presence of water and an acid catalyst like TfOH, an alkyne will typically undergo hydration to form a ketone through keto-enol tautomerization. The major product in this reaction is likely a ketone where the addition of water across the triple bond results in the formation of a carbonyl group (C=O). The reaction proceeds as follows: - The alkyne reacts with water, adding an -OH group and hydrogen across the triple bond. - The resulting alcohol (enol form) quickly tautomerizes to form a ketone. **Conclusion:** For this specific reaction, predict and draw the structure of the ketone formed when the alkyne is hydrated in the presence of triflic acid.
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