Solution Found!
Does the [1,7] sigmatropic rearrangement that converts
Chapter 28, Problem 19P(choose chapter or problem)
QUESTION:
Does the [1,7] sigmatropic rearrangement that converts provitamin \(D_3\) to vitamin \(D_3\) involve suprafacial or antarafacial rearrangement?
Questions & Answers
QUESTION:
Does the [1,7] sigmatropic rearrangement that converts provitamin \(D_3\) to vitamin \(D_3\) involve suprafacial or antarafacial rearrangement?
ANSWER:Solution 19P
Step 1 of 2
The formation of vitamin D3 from pro vitamin D3 involves [1,7] sigma tropic rearrangement. The sigma tropic rearrangement takes place under thermal conditions and is slower that the electro cyclic reaction.
Cholecakiferol (vitamin D3)