10 jobs in organic chemistry (K / P 2, option 8)

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Uploaded: 16.10.2012
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1. Write a reaction scheme Recovery of tartaric acid in the apple. To write the formula of these acids optical antipodes.
2. Tell us about the structure and the keto-enol tautomerism of acetoacetic ester.
3. Place in a row to increase the ease of compound nitration of benzene, toluene, phenol. Write Scheme.
4. The action of some reagents can be replaced by a diazonium group: a) chlorine; b) Br? Write schemes of chlorobenzene and bromobenzene of aniline (Sandmeyer reaction). Specify the reaction conditions.
5. Write Scheme tryptophan: a) NaOH; b) C2H5OH
(In the presence of H2SO4).
6. Write the structural formula of the liquid fat containing residues of oleic, linoleic and linolenic acids, and specify via a reaction that can be converted into a solid fat.
7. Write Scheme recovery: a) xylose; b) glucose to the corresponding polyols. Why the latter are used in the food industry?
8. Write the scheme of education glycoside of lactose by the action on it of methyl alcohol (in the presence of hydrogen chloride)?
9. What is glycogen? What are the similarities and differences of glycogen and starch.
10. Compare the aromatic character of furan and thiophene. Give examples of reactions.

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