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Organic chemistry

Faculty of Allied Medical Sciences. Organic chemistry. ( MGOC-101). Alkynes. 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 alkynes 2-Known nomenclature of alkynes

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Organic chemistry

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

  2. Alkynes 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 alkynes 2-Knownnomenclature of alkynes 3- learn to preparation of alkynes 4-Differentiate between reaction of alkynes

  4. Alkynes as function group of alkyne 1-Alkynes are fully unsaturated hydrocarbons • 2-General formula CnH2n-2 • 3-Triple bonds • 4-Straight or branched chain.

  5. Nomenclature 1-Commonname • Alkyl +yne Acetylene or ethyne Methyl acetylene • or propyne Dimethyl acetylene 2-IUPAC name Position+prefix+yne

  6. Synthesis of alkyne 1-Dehydrohalogenation of alkyl dihalide by using NaNH2 (sodamide) R= CH3, C2H5, ..........

  7. 2-Dehalogenation of alkyl tetrahalide R=CH3,C2H5,…….. EX:

  8. Reaction of alkyne 1-Addition of water (Hydration of alkyne)

  9. 2-Addition of hydrogen

  10. 3-Oxidative cleavage of alkyne

  11. Quiz time

  12. Write the chemical formula for the following compounds? 5,5-Dimethyl-1-hexyne Butyne propyne How can you prepare the following compound? Acetic acid Butyne Acetaldehyde Propanoic acid

  13. Student Question

  14. Complete

  15. Write the nomenclature for the following compounds?

  16. Assignments

  17. 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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