Guided course 01:01General properties of double addition reactions to alkynes.Johnny Betancourt1994views18rank4comments
Textbook QuestionPredict the major product(s) of the following reactions: a. phenylacetylene + 2HBr b. hex-1-yne + 2HCl627views
Textbook QuestionPropose a mechanism for the entire reaction of pent-1-yne with 2 moles of HBr. Show why Markovnikov's rule should be observed in both the first and second additions of HBr.461views
Textbook Question(••) For the alkynes shows here, show the product(s) expected to form when treated under the following conditions: (iv) HBr (1 equiv.). If you expect two products, show both. (c)300views
Textbook Question(••) For the alkynes shows here, show the product(s) expected to form when treated under the following conditions: (v) HCl (2 equiv.). If you expect two products, show both. (c)325views
Textbook QuestionPredict the alkyne and reactants you might use to make the following haloalkenes. [Providing the reactant and the reagent is how we start thinking about synthesis.] (a)359views
Textbook QuestionHBr and peroxides are also used to generate 1-bromo-1-alkenes. Suggest a starting reactant that would successfully undergo this reaction.299views
Textbook QuestionPredict the major products resulting from the addition of one equivalent of HX to the following alkynes.(b) <IMAGE>286views
Textbook QuestionPredict the alkyne and reactants you might use to make the following haloalkenes. [Providing the reactant and the reagent is how we start thinking about synthesis.](b) <IMAGE>267views
Textbook Question(••••) The addition of H―X to alkynes has been shown to occur predominately via anti addition:<IMAGE>Two chemists disagreed on whether or not anti addition would happen on terminal alkynes as well. Suggest an experiment through which you could resolve this dispute.<IMAGE>375views
Textbook QuestionWhat is the major product obtained from the reaction of each of the following compounds with excess HCl?c. CH3CH2C☰CCH2CH2CH3278views
Textbook QuestionAnswer Problem 39 , parts a–h, using 2-butyne as the starting material instead of propyne.a. HBr (1 mol)b. HBr (2 mol)252views
Textbook QuestionPredict the major product(s) of the following reactions:c. cyclooctyne + 2HBrd. *hex-2-yne + 2HCl326views
Textbook QuestionUsing hex-1-ene as your starting material, show how you would synthesize the following compounds. (Once you have shown how to synthesize a compound, you may use it as the starting material in any later parts of this problem.)(a) 1,2-dibromohexane(b) hex-1-yne(c) 2,2-dibromohexane230views
Textbook QuestionPredict the products of reaction of pent-1-yne with the following reagents. (a) 1 equivalent of HCl (b) 2 equivalents of HCl (c) excess H2, Ni893views2rank
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