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Hydrogenation of Alkynes Image: (insert your drawing of the reactants, products, and catalyst on the arrow) Alkanes are saturated hydrocarbons that can undergo combustion, halogenation, and cracking reactions. Alkenes are unsaturated hydrocarbons that contain at least one carbon-to-carbon double bond. They can undergo addition reactions with hydrogen, halogens, and water. They can also undergo oxidation and polymerization reactions. Alkynes are unsaturated hydrocarbons that contain at least one carbon-to-carbon triple bond. They can undergo many of the same reactions as alkenes, but can also react twice because of the two Pi bonds in the triple-bond. When an alkyne is hydrogenated, you add hydrogen atoms across the triple-bonds so that either a double-bond remains, or only single bonds are present in the compound. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced. Reactants: Alkyne and Hydrogen gas (H2) Product: Alkene or Alkane Catalyst: Usually Palladium (Pd), Platinum (Pt), or Nickel (Ni) Reaction: The triple bond in the alkyne is broken and replaced with a single bond by the addition of hydrogen atoms across the triple bond. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced.

Hydrogenation of Alkynes Image: (insert your drawing of the reactants, products, and catalyst on the arrow) Alkanes are saturated hydrocarbons that can undergo combustion, halogenation, and cracking reactions. Alkenes are unsaturated hydrocarbons that contain at least one carbon-to-carbon double bond. They can undergo addition reactions with hydrogen, halogens, and water. They can also undergo oxidation and polymerization reactions. Alkynes are unsaturated hydrocarbons that contain at least one carbon-to-carbon triple bond. They can undergo many of the same reactions as alkenes, but can also react twice because of the two Pi bonds in the triple-bond. When an alkyne is hydrogenated, you add hydrogen atoms across the triple-bonds so that either a double-bond remains, or only single bonds are present in the compound. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced. Reactants: Alkyne and Hydrogen gas (H2) Product: Alkene or Alkane Catalyst: Usually Palladium (Pd), Platinum (Pt), or Nickel (Ni) Reaction: The triple bond in the alkyne is broken and replaced with a single bond by the addition of hydrogen atoms across the triple bond. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced.

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Hydrogenation of Alkynes Image: (insert your drawing of the reactants, products, and catalyst on the arrow) Alkanes are saturated hydrocarbons that can undergo combustion, halogenation, and cracking reactions. Alkenes are unsaturated hydrocarbons that contain at least one carbon-to-carbon double bond. They can undergo addition reactions with hydrogen, halogens, and water. They can also undergo oxidation and polymerization reactions. Alkynes are unsaturated hydrocarbons that contain at least one carbon-to-carbon triple bond. They can undergo many of the same reactions as alkenes, but can also react twice because of the two Pi bonds in the triple-bond. When an alkyne is hydrogenated, you add hydrogen atoms across the triple-bonds so that either a double-bond remains, or only single bonds are present in the compound. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced. Reactants: Alkyne and Hydrogen gas (H2) Product: Alkene or Alkane Catalyst: Usually Palladium (Pd), Platinum (Pt), or Nickel (Ni) Reaction: The triple bond in the alkyne is broken and replaced with a single bond by the addition of hydrogen atoms across the triple bond. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced.
Transcribed Image Text:Hydrogenation of Alkynes Image: (insert your drawing of the reactants, products, and catalyst on the arrow) Alkanes are saturated hydrocarbons that can undergo combustion, halogenation, and cracking reactions. Alkenes are unsaturated hydrocarbons that contain at least one carbon-to-carbon double bond. They can undergo addition reactions with hydrogen, halogens, and water. They can also undergo oxidation and polymerization reactions. Alkynes are unsaturated hydrocarbons that contain at least one carbon-to-carbon triple bond. They can undergo many of the same reactions as alkenes, but can also react twice because of the two Pi bonds in the triple-bond. When an alkyne is hydrogenated, you add hydrogen atoms across the triple-bonds so that either a double-bond remains, or only single bonds are present in the compound. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced. Reactants: Alkyne and Hydrogen gas (H2) Product: Alkene or Alkane Catalyst: Usually Palladium (Pd), Platinum (Pt), or Nickel (Ni) Reaction: The triple bond in the alkyne is broken and replaced with a single bond by the addition of hydrogen atoms across the triple bond. If the final product contains a carbon-to-carbon double-bond, it becomes an alkene. If only single bonds are present, then an alkane is produced.
Title: Summary of Organic Reactions Hydrohalogenation of Alkenes Image: (insert your drawing of the reactants, products, and catalyst on the arrow) Reactants: Alkene and Hydrogen Halide (HBr, HCI, etc.) Product: Alkyl halide Catalyst: Usually none, but can be a Lewis acid (e.g. FeBr3) in some cases Reaction: The hydrogen atom in the hydrogen halide bonds to the carbon atom within the double bond that already has more hydrogen atoms, which follows Markovnikov's rule.
Transcribed Image Text:Title: Summary of Organic Reactions Hydrohalogenation of Alkenes Image: (insert your drawing of the reactants, products, and catalyst on the arrow) Reactants: Alkene and Hydrogen Halide (HBr, HCI, etc.) Product: Alkyl halide Catalyst: Usually none, but can be a Lewis acid (e.g. FeBr3) in some cases Reaction: The hydrogen atom in the hydrogen halide bonds to the carbon atom within the double bond that already has more hydrogen atoms, which follows Markovnikov's rule.
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