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Organic chemistry

Faculty of Allied Medical Sciences. Organic chemistry. ( MGOC-101). Alkanes. Supervision: Prof.Dr.Shehata El-Sewedy Dr. Fatma Ahmed. Outcomes. By the end of this lecture, the students will be able to. 1-Recognize formula of alkanes 2-Known nomenclature of alkanes

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Organic chemistry

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  1. Faculty of Allied Medical Sciences Organic chemistry (MGOC-101)

  2. Alkanes Supervision: Prof.Dr.Shehata El-Sewedy Dr. Fatma Ahmed

  3. Outcomes By the end of this lecture, the students will be able to 1-Recognize formula of alkanes 2-Knownnomenclature of alkanes 3- learn to preparation of alkanes 4- known reaction of alkanes

  4. Alkanes 1-Alkanes are fully saturated hydrocarbons • 2-General formula C2H2n+2 • 3-Single bonds (-C-H-, and -C-C-) • 4-Straight or branched chain.

  5. Formula of alkanes: 1-A line represents a carbon-carbon bond and an angle represents a carbon atom 2- A line ending in space represents a -CH3 group 3- Hydrogen atoms are not shown in line-angle formulas

  6. Nomenclature: 1-Select the longest continous carbon chain as parent name (Prefix+ane) 2-If you have two chain the same in length select the chain that have more substitution 3-If you have substituents number the chain from side near to substituents to give lowest number 4-If you have repeated groups use di….., tri……, tetra…….. 5-The groups arranged alphabetically. An alkyl group = an alkane with one H removed Alkyl groups are named by changing the ending of the alkane name to -yl Example: CH3-CH2- = ethyl

  7. EX: √√√ xxx

  8. A-Normal (n): straight chain no branch

  9. A-have CH3 group branch at C2 (iso-)

  10. B-Have two CH3group branch at C2(neo-) Ex:

  11. Classification of Carbons in Alkanes Carbons can be classified by how many other C’s are attached to them: - No C’s = methyl CH4 - 1 C = primary (1) CH3-CH3 - 2 C’s = secondary (2) CH3-CH2-CH3 - 3 C’s = tertiary (3) CH3-CH(CH3)2 - 4 C’s = quaternary (4) C(CH3)4

  12. Synthesis of alkane 1-Hydrogenation of alkene EX:

  13. 2-Reduction of alkyl halide 3-Wurtz reaction EX:

  14. 4-Grignarad reagent Ex:

  15. Reaction of alkane Halogenation of alkane

  16. Quiz time

  17. Complete Mention classification of hydrogen and carbon atoms ?

  18. Write the nomenclature for the following compounds

  19. Student Question

  20. Complete

  21. Mention classification of hydrogen and carbon atoms ?

  22. Write the nomenclature for the following compounds

  23. Assignments

  24. Recommended textbooks: 1-Raymond Chang. Chemistry: An introduction to organic chemistry. 10th ed. 2009 2008 2-Zumdehl. Organic Chemistry; study guide and solution manual. 2008

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