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An illustration depicts 12 different reaction processes of alkynes. Elimination Reaction: The reactant that has a two-carbon chain, in which C 1 is bonded to two X groups and an R group reacts in the presence of X S sodamide, N a N H 2 in the first step; a water molecule in the second step to yield a product. The structure of the product has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The reactant that has a two-carbon chain, in which C 1 is bonded to a X group and an R group; C2 is bonded to an X group reacts in the presence of X S sodamide, N a N H 2 in the first step; a water molecule in the second step to yield a product. The structure of the product has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. Hydrohalogenation Reaction (two equivalents): The reactant reacts in the presence of X S hydrogen halide, H X to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is bonded to two X groups and an R group. Hydrohalogenation Reaction (one equivalent): The reactant reacts in the presence of one equivalent of hydrogen halide, H X to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which both the carbon atoms are double bonded to each other. C 1 is bonded to an X group and an R group. Acid-catalyzed hydration Reaction: The reactant reacts in the presence of H g S O 4, H 2 S O 4, and H 2 O to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is double bonded to an oxygen atom and single bonded to an R group. C 2 is a methyl group. Hydroboration-oxidation Reaction: The reactant reacts in the presence of R 2 B H in the first step; H 2 O 2 and N a O H in the second step to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is double bonded to an oxygen atom and single bonded to a hydrogen atom. C 2 is an R group. Halogenation Reaction (one equivalent): The reactant reacts in the presence of one equivalent of halogen molecule, X 2 and carbon tetrachloride molecule, C C l 4 to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which both the carbon atoms are double bonded to each other. C 1 is bonded to an R group and an X group. C 2 is bonded to an X group. Halogenation Reaction (two equivalents): The reactant reacts in the presence of X S halogen molecule, X 2 and carbon tetrachloride molecule, C C l 4 to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is bonded to an R group and two X groups. C 2 is bonded to two X groups. Ozonolysis Reaction: The reactant reacts in the presence of ozone molecule, O 3 in the first step; water molecule, H 2 O in the second step to yield a pair of products. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the first product has a central carbon atom, which is double bonded to an oxygen atom, single bonded to an R group, and a hydroxyl group. The structure of the second product has a central carbon atom, which is double bonded to two oxygen atoms. Alkylation Reaction: The reactant reacts in the presence of sodamide, N a N H 2 in the first step; alkyl halide, R X in the second step to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. Dissolving metal reduction Reaction: The reactant reacts in the presence of sodium metal, N a and ammonium liquid, N H 3 to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. The structure of the product (trans form) has a two-carbon atom, in which both the carbon atoms are double bonded to each other. C 1 and C 2 each is bonded to an R group. Hydrogenation Reaction: The reactant reacts in the presence of hydrogen molecule, H 2 and a platinum metal, P t to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. The structure of the product has a two-carbon atom, in which C 1 and C 2 each is bonded to an R group. Hydrogenation with a poisoned catalyst Reaction: The reactant reacts in the presence of hydrogen molecule, H 2 and Lindlar’s catalyst to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. The structure of the product (cis form) has a two-carbon atom, in which C 1 and C 2 each is bonded to an R group.
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Directions: Click the "Next" button below to access an interactive drag and drop version of this graphic, which will help reinforce the concepts you have been studying.

An illustration depicts 12 different reaction processes of alkynes. Elimination Reaction: The reactant that has a two-carbon chain, in which C 1 is bonded to two X groups and an R group reacts in the presence of X S sodamide, N a N H 2 in the first step; a water molecule in the second step to yield a product. The structure of the product has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The reactant that has a two-carbon chain, in which C 1 is bonded to a X group and an R group; C2 is bonded to an X group reacts in the presence of X S sodamide, N a N H 2 in the first step; a water molecule in the second step to yield a product. The structure of the product has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. Hydrohalogenation Reaction (two equivalents): The reactant reacts in the presence of X S hydrogen halide, H X to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is bonded to two X groups and an R group. Hydrohalogenation Reaction (one equivalent): The reactant reacts in the presence of one equivalent of hydrogen halide, H X to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which both the carbon atoms are double bonded to each other. C 1 is bonded to an X group and an R group. Acid-catalyzed hydration Reaction: The reactant reacts in the presence of H g S O 4, H 2 S O 4, and H 2 O to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is double bonded to an oxygen atom and single bonded to an R group. C 2 is a methyl group. Hydroboration-oxidation Reaction: The reactant reacts in the presence of R 2 B H in the first step; H 2 O 2 and N a O H in the second step to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is double bonded to an oxygen atom and single bonded to a hydrogen atom. C 2 is an R group. Halogenation Reaction (one equivalent): The reactant reacts in the presence of one equivalent of halogen molecule, X 2 and carbon tetrachloride molecule, C C l 4 to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which both the carbon atoms are double bonded to each other. C 1 is bonded to an R group and an X group. C 2 is bonded to an X group. Halogenation Reaction (two equivalents): The reactant reacts in the presence of X S halogen molecule, X 2 and carbon tetrachloride molecule, C C l 4 to yield the product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which C 1 is bonded to an R group and two X groups. C 2 is bonded to two X groups. Ozonolysis Reaction: The reactant reacts in the presence of ozone molecule, O 3 in the first step; water molecule, H 2 O in the second step to yield a pair of products. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the first product has a central carbon atom, which is double bonded to an oxygen atom, single bonded to an R group, and a hydroxyl group. The structure of the second product has a central carbon atom, which is double bonded to two oxygen atoms. Alkylation Reaction: The reactant reacts in the presence of sodamide, N a N H 2 in the first step; alkyl halide, R X in the second step to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other and C 1 is bonded to an R group. The structure of the product has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. Dissolving metal reduction Reaction: The reactant reacts in the presence of sodium metal, N a and ammonium liquid, N H 3 to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. The structure of the product (trans form) has a two-carbon atom, in which both the carbon atoms are double bonded to each other. C 1 and C 2 each is bonded to an R group. Hydrogenation Reaction: The reactant reacts in the presence of hydrogen molecule, H 2 and a platinum metal, P t to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. The structure of the product has a two-carbon atom, in which C 1 and C 2 each is bonded to an R group. Hydrogenation with a poisoned catalyst Reaction: The reactant reacts in the presence of hydrogen molecule, H 2 and Lindlar’s catalyst to yield a product. The structure of the reactant has a two-carbon chain, in which both the carbon atoms are triple bonded to each other. C 1 and C 2 each is bonded to an R group. The structure of the product (cis form) has a two-carbon atom, in which C 1 and C 2 each is bonded to an R group.
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