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2-Pentanol can coverted to 2-ethoxy pent...

2-Pentanol can coverted to 2-ethoxy pentane by two paths. In path `I`, configuration at chiral `C` is retained but at path `II`, configuration is inverted. Explain.
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Tosyl (Ts) is .

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In both the paths, the nucleophile is `C_2H_5O^(Ө)` ion. In path `I`, nucleophile has chiral centre and reaction takes place without breaking any bond, thus configuration in final product is retained.

In path `II`, nucleophile `(C_2H_5O^(Ө))` attacks chiral centre back-side in an `SN^2` reaction with inversion of configuration in ether (`underset (o)rarr` means inversion).
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CENGAGE CHEMISTRY ENGLISH-ORGANIC REACTION MECHANISM-Subjective
  1. Complete the following and state the relations between configurations ...

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  2. What are the products and types of isomers when Br2 adds to :

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  3. . identify the product (A)

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  4. Give the stereochemical products of the following : (i) CH-=CH+Br(2)...

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  5. Give the products of the following organic reactions :

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  6. Of the following pairs, which is the faster SN^2 reactions ?

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  7. Of the following pairs, which is the faster SN^1 reactions ? .

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  8. Which of the following would give a better yield of ether ? .

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  9. Give the decreasing order of SN^1 reactions of the following compounds...

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  10. Give the major product when the following compounds are reacted with C...

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  11. 2-Bromopentane is treated with alcoholic KOH solution. Whatt will be t...

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  12. 2-Pentanol can coverted to 2-ethoxy pentane by two paths. In path I, c...

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  13. When reacts with alcoholic KCN, a mixture of isomeric products is ...

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  14. Give the stereochemical products of the following : .

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  15. Give the sterochemical products : HC-=CH + 2NaNH2 + 2EtBr rarr (A) ...

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  16. Identify (B),(c), and (D). .

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  17. . Identify the products

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  18. Explain the difference in the following reactions. .

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  19. Predict the products with configurations in the following. (a) (+)2-...

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