10. Addition Reactions
Alkyne Halogenation
10. Addition Reactions
Alkyne Halogenation - Video Tutorials & Practice Problems
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Get a 10 bullets summary of the topicWhat happens when we add X2 instead of HX to an alkyne? We end up with four halogens in our product. Let's see how that works:
1
concept
Double halogenation of alkynes.
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General Reaction:
- Product: tetrahalides
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PRACTICE PROBLEMS AND ACTIVITIES (33)
- What is the major product of the reaction of 1 mol of propyne with each of the following reagents? d. Br2 (2 ...
- Answer Problem 39 , parts a–h, using 2-butyne as the starting material instead of propyne. d. Br2 (2 mol)/CH2...
- Answer Problem 39 , parts a–h, using 2-butyne as the starting material instead of propyne. c. Br2 (1 mol)/CH2...
- What is the major product of the reaction of 1 mol of propyne with each of the following reagents? c. Br2 (1 ...
- In the addition of just 1 mole of bromine to 1 mole of hex-1-yne, should the hex-1-yne be added to a bromine s...
- (••) For the alkynes shows here, show the product(s) expected to form when treated under the following conditi...
- (••) For the alkynes shows here, show the product(s) expected to form when treated under the following conditi...
- (••••) Trans addition is heavily favored for the addition of Br₂ and Cl₂ to alkynes. With chlorination, howe...
- Drawing on what you know about the stereochemistry of alkene addition reactions,a. write the mechanism for the...
- Drawing on what you know about the stereochemistry of alkene addition reactions,b. predict the configuration o...
- Show how hex-1-yne might be converted tod. 1,1,2,2-tetrabromohexane.
- (•) Predict the product(s) that would result when the alkenes shown here are allowed to react under the follow...
- Predict the products you would get when the following alkenes react under the following conditions: (i) H₂SO₄ ...
- (••) For the alkynes shows here, show the product(s) expected to form when treated under the following conditi...
- (••••) In Section 10.8.1, you learned that alkenes react more quickly with electrophiles than do the correspon...
- (••••) α-Pinene is a terpene found in pine trees. Starting from geranyl diphosphate (a terpene), draw the arro...
- Predict the products you would get when the following alkenes react under the following conditions: (i) H₂SO₄ ...
- (•) Predict the product(s) that would result when the alkenes shown here are allowed to react under the follow...
- What stereoisomers are obtained when 2-butyne undergoes each of the following reaction sequences?a. 1. H2/Lind...
- Show what reagents would be needed to synthesize the pheromone of the omnivorous leafroller (OLR) using olefin...
- Propose a mechanism for the triolefin process using a metal alkylidene as the catalyst.<IMAGE>
- Show what products you would expect from the following metathesis reactions, using the Schrock or Grubbs catal...
- Protonation of which of the following alkenes would be faster? vs.
- (•••) IN THE CHEMICAL LITERATURE The synthesis of five-membered lactones (cyclic esters) has been accomplished...
- Draw the mechanism for the following reaction:<IMAGE>
- (•••) When alkynes are treated with water and bromine a bromoketone is produced. Provide a plausible arrow-pus...
- What reagents should be used to carry out the following syntheses?
- What characteristics must the reactant of a stereospecific reaction have?
- Which electrophilic addition reactions a. form a carbocation intermediate? intermediate?
- Which electrophilic addition reactions c. form a three-membered ring
- Which electrophilic addition reactions d. form a five-membered ring intermediate?
- b. What would the yield be if two more steps (each with an 80% yield) were added to the synthesis?
- Predict the products of reaction of pent-1-yne with the following reagents. (d) H2, Pd/BaSO4, quinoline (e) 1...