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Which of the Following Best Explains the Rearrangement When Provitamin

Question 62

Multiple Choice

Which of the following best explains the rearrangement when provitamin D3 rearranges to vitamin D3? Which of the following best explains the rearrangement when provitamin D<sub>3</sub> rearranges to vitamin D<sub>3</sub>?   A) [1,7] cycloaddition rearrangement, antarafacial B) [1,7] cycloaddition rearrangement, suprafacial C) [1,7] sigmatropic rearrangement, antarafacial D) [1,7] sigmatropic rearrangement, suprafacial E) [1,7] electrocyclic reaction, suprafacial


A) [1,7] cycloaddition rearrangement, antarafacial
B) [1,7] cycloaddition rearrangement, suprafacial
C) [1,7] sigmatropic rearrangement, antarafacial
D) [1,7] sigmatropic rearrangement, suprafacial
E) [1,7] electrocyclic reaction, suprafacial

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