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Organic Chemistry > Alkynes > Flashcards

Alkynes Flashcards

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1
Q

Synthesis

A

Elimination of HX

  • KOH: internal alkyne
  • NaNH2: terminal alkyne
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2
Q

Addition of H2

A

2H2/Pt: alkyne>alkane
Cis: H2 / Pd, BaSO4
Trans: Na+ / NH3

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3
Q

Addition of X2

A

+ 2(halogen)

Br, Cl, I

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4
Q

Addition of HX

A

+HBR: mark (internal)

+HBr / ROOR (peroxide): non-mark (terminal)

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5
Q

Addition of H2O

A

Oxymercuration: HgSO4, H3O+ / NaBH4
Hydroboration: R2BH / H2O2, OH-

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6
Q

Oxidations

A

KMnO4, O3: acids (each)

*if CH, KMnO4 produces CO2

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Organic Chemistry (2 decks)

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