Click the "draw structure" button to launch the drawing utility. Draw the structure of the major organic product isolated from t
he reaction of 3-hexyne with hydrogen (1 mol), Lindlar palladium.
1 answer:
Answer:
cis-hex-2-ene as produced as major product.
Explanation:
- In presence of
(Lindlar catalyst) and
, alkynes are reduced to alkene.
- When alkyne molecule comes in close proximity to the metal surface, H atoms add onto triple bond to reduce it to alkene.
- Two H atoms add onto alkyne from same face of metal. So, (Z) or cis-isomer of alkene is produced as a major product.
- Reaction mechanism has been shown below.
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Answer:
D
Explanation:
We must study the reaction pictured in the question closely before we begin to attempt to answer the question.
Now, the reaction is a free radical reaction. This implies that only one electron is transferred. The transfer of one electron is shown using a half arrow rather than a full arrow. The both species are radicals (odd electron species) and contribute one electron each.
Hence we must show electron movements in both species using a half arrow.
