Ch. 10 - Addition ReactionsWorksheetSee all chapters
All Chapters
Ch. 1 - A Review of General Chemistry
Ch. 2 - Molecular Representations
Ch. 3 - Acids and Bases
Ch. 4 - Alkanes and Cycloalkanes
Ch. 5 - Chirality
Ch. 6 - Thermodynamics and Kinetics
Ch. 7 - Substitution Reactions
Ch. 8 - Elimination Reactions
Ch. 9 - Alkenes and Alkynes
Ch. 10 - Addition Reactions
Ch. 11 - Radical Reactions
Ch. 12 - Alcohols, Ethers, Epoxides and Thiols
Ch. 13 - Alcohols and Carbonyl Compounds
Ch. 14 - Synthetic Techniques
Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect
Ch. 16 - Conjugated Systems
Ch. 17 - Aromaticity
Ch. 18 - Reactions of Aromatics: EAS and Beyond
Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition
Ch. 20 - Carboxylic Acid Derivatives: NAS
Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon
Ch. 22 - Condensation Chemistry
Ch. 23 - Amines
Ch. 24 - Carbohydrates
Ch. 25 - Phenols
Ch. 26 - Amino Acids, Peptides, and Proteins
Addition Reaction
Acid-Catalyzed Hydration
Epoxide Reactions
Ozonolysis Full Mechanism
Oxidative Cleavage
Alkyne Oxidative Cleavage
Alkyne Hydrohalogenation
Alkyne Halogenation
Alkyne Hydration
Alkyne Hydroboration
Additional Practice
Thermodynamics of Addition-Elimination Equilibria
Stereospecificity vs. Stereoselectivity
Oxymercuration-Reduction Full Mechanism
Hydroboration-Oxidation Full Mechanism
Haloether Formation
Simmons-Smith Addition Mechanism
Regiospecificity of Acid-Catalyzed Ring Openings
Anti Vicinal Dihydroxylation
Ozonolysis Retrosynthesis
LiBr and Acetic Acid for Anti Vinyl Dihaldes
Addition Reagent Facts
Predicting Stereoisomers of Addition Reactions
Addition Missing Reagent
Addition Synthesis
Addition Texas Two-Step
Addition Retrosynthesis
Addition to Concave vs. Convex Rings

Hydroboration-oxidation of terminal alkynes leads to formation of aldehydes. (If the alkyne is not terminal, it will just yield a ketone). 

Concept #1: Anti-Markovnikov addition of alcohols to terminal alkynes yields aldehydes.   

This reaction yields an anti-Markovnikov vinyl alcohol, which will tautomerize into a carbonyl on the terminal position, which is the definition of an aldehyde. 

Additional Problems
Predict the product for the reaction below. 
Complete the following reaction by drawing the structure of the one major organic product in the box provided. 
Predict the product for the reaction below. 
Fill in the box with the product(s) that are missing from the chemical reaction equation. Draw only the predominant regioisomer product or products (i.e. Markovnikov or non-Markovnikov products) and please remember that you must draw the structures of all the product stereoisomers using wedges and dashes to indicate stereochemistry. When a racemic mixture is formed, you must write "racemic" under both structures EVEN THOUGH YOU DREW BOTH STRUCTURES.
Which is the expected product of this reaction?
Reaction of an asymmetrical terminal alkyne with 1. BH3,THF, and 2. H2O2, NaOH, and water would produce which of the following? alkene diol aldehyde ketone
The principal product of the following transformation is:
Write the products of the reactions of the compound shown in the center with the reagents shown on the arrows. Make sure to include stereochemistry, but do not write mechanisms.
Provide the reagents required for the following transformations. Note, that some of these methods will require more than one chemical step. All the steps and reagents must be included.
Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars.
What alkyne that does not contain O is best used to make the compound shown?
What is the major organic product obtained from the following reaction?