Draw the structures of organic compounds A and B. Indicate stereochemistry where applicable H2 H20 H,O* Lindlar's OH 1. NaNH2 catalyst H-CEC-H compound A compound B 2. CH;CH,CH,Br (1 equiv.)

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Chapter1: Chemical Foundations
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**Organic Chemistry Reaction Sequence**

The image presents a sequence of reactions for drawing the structures of organic compounds A and B. The reactions are detailed below:

1. **Reaction Steps:**
   - Start with a terminal alkyne: Acetylene (H-C≡C-H).
   - First Reaction: Treat with sodium amide (NaNH₂) to deprotonate the alkyne and form compound A.
   - Second Reaction: React compound A with 1 equivalent of 1-bromo-2-propane (CH₃CH₂CH₂Br) to obtain compound B.

2. **Catalytic Hydrogenation:**
   - Compound B is subjected to hydrogenation using H₂ in the presence of Lindlar's catalyst to produce a cis-alkene.
   
3. **Hydration of the Alkene:**
   - The resulting alkene undergoes hydration (H₂O, H₃O⁺) to produce the final alcohol product — shown as a structure with an OH group bonded to an ethyl side chain.

**Drawing Interface:**
- Two sections are provided for drawing Compound A and Compound B, each with tools for:
  - Selecting and Drawing chemical structures.
  - Options for adding rings and other features.
  - Erase function to modify drawn structures.

This information aids in understanding the transformation of acetylene into an alcohol via a series of chemical reactions, emphasizing the application of both organometallic chemistry and catalytic hydrogenation processes.
Transcribed Image Text:**Organic Chemistry Reaction Sequence** The image presents a sequence of reactions for drawing the structures of organic compounds A and B. The reactions are detailed below: 1. **Reaction Steps:** - Start with a terminal alkyne: Acetylene (H-C≡C-H). - First Reaction: Treat with sodium amide (NaNH₂) to deprotonate the alkyne and form compound A. - Second Reaction: React compound A with 1 equivalent of 1-bromo-2-propane (CH₃CH₂CH₂Br) to obtain compound B. 2. **Catalytic Hydrogenation:** - Compound B is subjected to hydrogenation using H₂ in the presence of Lindlar's catalyst to produce a cis-alkene. 3. **Hydration of the Alkene:** - The resulting alkene undergoes hydration (H₂O, H₃O⁺) to produce the final alcohol product — shown as a structure with an OH group bonded to an ethyl side chain. **Drawing Interface:** - Two sections are provided for drawing Compound A and Compound B, each with tools for: - Selecting and Drawing chemical structures. - Options for adding rings and other features. - Erase function to modify drawn structures. This information aids in understanding the transformation of acetylene into an alcohol via a series of chemical reactions, emphasizing the application of both organometallic chemistry and catalytic hydrogenation processes.
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