Solved: b-Carotene, a yellow food-coloring agent and dietary source of vitamin A can be
Chapter 19, Problem 19.17(choose chapter or problem)
b-Carotene, a yellow food-coloring agent and dietary source of vitamin A can be prepared by a double Wittig reaction between 2 equivalents of b-ionylideneacetaldehyde and a diylide. Show the structure of the b-carotene product. -Ionylideneacetaldehyde A diylide
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