(a)
Interpretation:
The set of reagents satisfying the given conditions used for the synthesis of the given
Concept introduction:
An
(b)
Interpretation:
The
Concept introduction:
An aldehyde or a ketone reacts with phosphonium ylide to form an alkene. This reaction is known as wittig reaction.
(c)
Interpretation:
The reagents used for the synthesis of given set of alkenes should be determined.
Concept introduction:
An aldehyde or a ketone reacts with phosphonium ylide to form an alkene. This reaction is known as wittig reaction.
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EBK ORGANIC CHEMISTRY
- A. Draw the products of the reaction shown below. Use wedge and dish bonds to indicate the dicarbonyl starting material of the reaction shown below. Ignore inorganic stereochemistry. Ignore inorganic byproducts. byproducts. Draw the products resulting from addition of a Grignard reagent to an aldehyde. D. Draw the products resulting from addition of a Grignard reagent to an aldehydom Use a dash or wedge bond to indicate the stereochemistry of substituents on asymmetric centers, where applicablelgnore any inorganic byproducts. Use a dash or wedge bond to indicate the stereochemistry of substituents on asymmetric centers, where applicablelgnore any inorganic byproducts. 1.00 2. NHSO HO 2.HO Select to Draw 1) PhMgCl (CHMgC CH 2) HCI/H:O ++ 1) vinylmagnesium chloride (CH=CHC 2HC/H.O Select to Edit OH Select to Edit Select to Edearrow_forwarda. HO b. NH 33. Which is a better nucleophile? a. H₂O or HO c. H₂S b. NH3 or NH₂ C. CH, CO in a better leaving group. or CH3CH₂O d. -0 or -0arrow_forwardConsider the following nucleophilc substitution. LOCH3 Br OCH3 в A a. Identify the reaction conditions A and specify the reaction mechanism for the nucleophilic substitution. Explain your choice. b. Explain why the transformation does not give rise to significant elimination. c. Which product(s) B is formed in the reaction? Please specify the stereochemistry clearly with reference to the reaction mechanism.arrow_forward
- Devise a synthesis of each compound using CH3CH2CH=CH2 as the starting material. You may use any other organic compounds or inorganic reagents.arrow_forwardWhich of the following compounds cannot be prepared by a Heck reaction? a. For those compounds that can be prepared by a Heck reaction, what starting materials are required?arrow_forward12. What alkyl halide and nucleophile are needed to prepare the following compounds? a. b. OHarrow_forward
- Enols are quite reactive toward electrophiles than alkenes because: а. The OH group has a powerful electron-donating O resonance effect b. A resonance structure can be drawn that places a negative charge on one of the carbon atoms, making this carbon electrophilic С. The enol can react with nucleophilic carbon to form a new bond to carbon d. None of the options are correctarrow_forward1. Which of these reagents can generate the desired product through ozonolysis?arrow_forwardIf the alkyl halide in each of these reactions was an alkyl chloride instead of thebromide,A. the reaction rate would decrease.B. a better leaving group would be involved. C. a polar aprotic solvent would be needed.D. ΔG would be decreased.arrow_forward
- Which molecules contain good leaving groups?arrow_forwardDevise a synthesis of each compound using CH3CH₂CH=CH₂ as the starting material. You may use any other organic compounds or inorganic reagents. a. b. d. e. Br Br Br OH OH (+ enantiomer)arrow_forwardWhat two sets of reagents (each consisting of a carbonyl compound and phosphonium ylide) can be used for the synthesis of the following alkene? a. What alkyl halide is required to prepare each of the phosphonium ylides? b. What is the best set of reagents to use for the synthesis?arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning