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Organic Reaction Mechanism and Synthetic Applications question

2025 · Q21
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Organic Reaction Mechanism and Synthetic Applications question

2025 · Q21

IIT JAMChemistryOrganic Reaction Mechanism and Synthetic ApplicationsMCQ+2 / −0.67
Pericyclic reactions involved in the synthesis of Vitamin D₂ from Ergosterol are
  1. A
    6π6\pi6π electrocyclic ring opening followed by [1,7] sigmatropic shift
  2. B
    [1,5] sigmatropic shift followed by 6π6\pi6π electrocyclic ring opening
  3. C
    [3,3] sigmatropic rearrangement followed by [1,7] sigmatropic shift
  4. D
    4π4\pi4π electrocyclization followed by 6π6\pi6π electrocyclic ring opening
View written solutionFree

Correct answer: A

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