Concept explainers
(a)
To determine: The products, when
Interpretation: The products, when
Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into
An acid catalysed hydration reaction of
(b)
To determine: The products, when
Interpretation: The products, when
Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone or aldehyde in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.
An acid catalysed hydration reaction of alkynes in the presence of mercuric sulphate gives ketone.
(c)
To determine: The products, when
Interpretation: The products, when
Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone or aldehyde in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.
An acid catalysed hydration reaction of alkynes in the presence of mercuric sulphate gives ketone.
(d)
To determine: The product, when
Interpretation: The products, when
Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule in to ketone or aldehyde in the presence of disiamylborane and hydrogen peroxide through the two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.
An acid catalysed hydration reaction of alkynes in the presence of mercuric sulphate gives ketone.
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Chapter 9 Solutions
Organic Chemistry (9th Edition)
- Epoxides can be opened in aqueous acid or aqueous base to produce diols (molecules with two OH groups). In this question, you'll explore the mechanism of epoxide opening in aqueous acid. 2nd attempt Be sure to show all four bonds at stereocenters using hash and wedge lines. 0 0 Draw curved arrows to show how the epoxide reacts with hydronium ion. 100 +1: 1st attempt Feedback Be sure to show all four bonds at stereocenters using hash and wedge lines. See Periodic Table See Hint H A 5 F F Hr See Periodic Table See Hintarrow_forward03 Question (1 point) For the reaction below, draw both of the major organic products. Be sure to consider stereochemistry. > 1. CH₂CH₂MgBr 2. H₂O 3rd attempt Draw all four bonds at chiral centers. Draw all stereoisomers formed. Draw the structures here. e 130 AN H See Periodic Table See Hint P C Brarrow_forwardYou may wish to address the following issues in your response if they are pertinent to the reaction(s) you propose to employ:1) Chemoselectivity (why this functional group and not another?) 2) Regioselectivity (why here and not there?) 3) Stereoselectivity (why this stereoisomer?) 4) Changes in oxidation state. Please make it in detail and draw it out too in what step what happens. Thank you for helping me!arrow_forward
- 1) Chemoselectivity (why this functional group and not another?) 2) Regioselectivity (why here and not there?) 3) Stereoselectivity (why this stereoisomer?) 4) Changes in oxidation state. Everything in detail and draw out and write it.arrow_forwardCalculating the pH at equivalence of a titration 3/5 Izabella A chemist titrates 120.0 mL of a 0.7191M dimethylamine ((CH3)2NH) solution with 0.5501 M HBr solution at 25 °C. Calculate the pH at equivalence. The pk of dimethylamine is 3.27. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of HBr solution added. pH = ☐ ✓ 18 Ar Boarrow_forwardAlcohols can be synthesized using an acid-catalyzed hydration of an alkene. An alkene is combined with aqueous acid (e.. sulfuric acid in water). The reaction mechanism typically involves a carbocation intermediate. > 3rd attempt 3343 10 8 Draw arrows to show the reaction between the alkene and hydronium ion. that 2nd attempt Feedback 1st attempt تعمال Ju See Periodic Table See Hint F D Ju See Periodic Table See Hintarrow_forward
- Draw the simplified curved arrow mechanism for the reaction of acetone and CHgLi to give the major product. 4th attempt Π Draw the simplified curved arrow mechanism T 3rd attempt Feedback Ju See Periodic Table See Hint H -H H -I H F See Periodic Table See Hintarrow_forwardSelect the correct reagent to accomplish the first step of this reaction. Then draw a mechanism on the Grignard reagent using curved arrow notation to show how it is converted to the final product. 4th attempt Part 1 (0.5 point) Select the correct reagent to accomplish the first step of this reaction. Choose one: OA Mg in ethanol (EtOH) OB. 2 Li in THF O C. Li in THF D. Mg in THF O E Mg in H2O Part 2 (0.5 point) Br Part 1 Bri Mg CH B CH, 1 Draw intermediate here, but no arrows. © TE See Periodic Table See Hint See Hint ין Harrow_forwardSelect the product for the following reaction. HO HO PCC OH ○ OH O HO ○ HO HO HOarrow_forward
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