10. Addition Reactions
Alkyne Hydroboration
10. Addition Reactions
Alkyne Hydroboration - Video Tutorials & Practice Problems
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Get a 10 bullets summary of the topicHydroboration-oxidation of terminal alkynes leads to formation of aldehydes. (If the alkyne is not terminal, it will just yield a ketone).
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Anti-Markovnikov addition of alcohols to terminal alkynes yields aldehydes
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Video transcript
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.
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PRACTICE PROBLEMS AND ACTIVITIES (22)
- Answer Problem 39 , parts a–h, using 2-butyne as the starting material instead of propyne. f. R2BH in THF fol...
- What reagents should be used to carry out the following syntheses?
- Predict the major products of the following reactions. d. trans-cyclodecene + peroxyacetic acid in acidic wat...
- For each compound, give the product(s) expected from (1) HgSO4/H2SO4 - catalyzed hydration and (2) hydroborati...
- For each compound, give the product(s) expected from (1) HgSO4/H2SO4 - catalyzed hydration and (2) hydroborati...
- For each compound, give the product(s) expected from (1) HgSO4/H2SO4 - catalyzed hydration and (2) hydroborati...
- For each compound, give the product(s) expected from (1) HgSO4/H2SO4 - catalyzed hydration and (2) hydroborati...
- The hydroboration–oxidation of internal alkynes produces ketones. b. When hydroboration–oxidation is applied ...
- The hydroboration–oxidation of internal alkynes produces ketones. a. When hydroboration–oxidation is applied ...
- Show how you would accomplish the following synthetic transformations. Show all intermediates. (j) < of re...
- Predict the products of reaction of pent-1-yne with the following reagents. (j) NaNH2 (k) H2SO4/HgSO4, H2O (l...
- Draw the ketone(s) you would expect to form by treating the following alkynes under the conditions of hydrobor...
- (••) For the alkynes shows here, show the product(s) expected to form when treated under the following conditi...
- Predict the product of the following aldehyde/ketone syntheses. (c)
- How can the following compounds be prepared using ethyne as the starting material?a. <IMAGE>
- What are products of the following reactions?e. <IMAGE>
- The following functional-group interchange is a useful synthesis of aldehydes.<IMAGE of reaction>(a) Wha...
- For each of the following alkynes, draw the products obtained from (1) the acid-catalyzed addition of water (m...
- What is the major product of the reaction of 1 mol of propyne with each of the following reagents?e. aqueous H...
- Explain why a single pure product is obtained from hydroboration–oxidation of 2-butyne, whereas two products a...
- What are products of the following reactions?d. <IMAGE>
- What hydrocarbon would you use to prepare the organoboron compound in Problem 14?<IMAGE>