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Wittig reaction : The reaction of a ph...

Wittig reaction :
The reaction of a phosphorus ylide with an aldehyde (or) ketone introduces a carbon-carbon double bond is place of the carbonyl bond.

Driving froce of the reaction is high bond energy of (P = O). `(DeltaH=-ve)`.
Identify major product in given intramolecular wittig reaction :

Product (A) and (B) respectively are :

A

B

C

D

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The correct Answer is:
A
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MS CHOUHAN-ALDEHYDES AND KETONES-LEVEL-2
  1. Select the best choice for example (A to L) from the examples (a to n)...

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  2. The following questions refer to the compounds (A to G) shown below :

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  3. Match of the column :

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  4. Complete the following table.

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  5. Consider the following reactions and answer A and B. Suggest a re...

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  6. Yield of each step as actually carried out in the laboratory is given ...

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  7. Degree of unsaturation present in compound (A + B + C) is ?

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  8. Within each set, which compound should be more reactive toward carbony...

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  9. Match the Column (I) and Column (II). (Matrix)

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  10. Consider reactions A through F. Those carbon atoms undergoing change, ...

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  11. Consider the possible formation of an aldehyde or ketone product when ...

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  12. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  13. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  14. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  15. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  16. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  17. Wittig reaction : The reaction of a phosphorus ylide with an aldehyd...

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  18. Match the column :

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  19. Reactant (A) is :

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  20. Product (B) is :

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