Use the image below to answer the following three questions. Note: Subscripts arenot shown in answer choices, ex: H2 should be H2, NH3 should be NH3.Product AProduct BProduct Ca. The reagents that would selectively yield Product A are[Select]b. The reagents that would selectively yield Product B are[ Sclect]c. The reagents that would selectively yield Product C are[ Select]

Here we have to mention three reagent for three mode of reduction of above alkyne.

Answered: Use the image below to answer the…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter25: Enolate & Enol Nucleophiles

Section: Chapter Questions

Problem 11CTQ

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Use the image below to answer the following three questions. Note: Subscripts are not shown in answer choices, ex: H2 should be H2, NH3 should be NH3. Product A Product B Product C a. The reagents that would selectively yield ProductA are [ Select] b. The reagents that would selectively yield Product B are [Select] c. The reagents that would selectively yield Product Care [Select]
6. Multi Step Synthesis. Propose a synthetic route from the reactant to the product using any reagents you need. Nalt LINH4
4. Circle the electrophilic and nucleophilic atoms in each substitution reaction below. Provide the neutral organic product; where a stereocenter is created, use a wavy bond to indicate a mixture of configurations or wedges/dashes for stereospecific reactions. Also, provide the dominant reaction mechanism (Sn2 or SN1) somewhere in each box. A. Br NaSEt DMF В. ELOH C. .SO2NHNA Cl + D. NaH Br- HO, DMF
2. Но ... H-O Draw the major product of this reaction. Explain your reasoning. Br₂, H₂O EtOH 1. Me₂ BuSi-CI, imidazole 2.9-BBN-H (like BH3) 3. H₂O₂, NaOH OTMS excess HBr
Draw the major product of this reaction. Ignore inorganic byproducts. 0 1. CrO3, H₂SO4 2. Neutralizing work-up H .
For the energy diagram below, which of the statements are true for transition state for formation of B I. has lower activation energy than TS for D II. looks like compound A III. looks like compound C IV. is the fastest step of the reaction E, komol A O II OI B C E Reaction rate ~ [substrate ] x [reagent] Reaction progress
This reaction is an example of conjugate addition of a nucleophile to an a,ẞ-unsaturated carbonyl. O CH3CH2CH2CH=CHCSCOA H₂O OH CH3CH2CH2CHCH2CSCOA Draw the two resonance structures of the enolate anion intermediate for this reaction. • Draw an R1 group in place of COA. The R group tool is located in the charges and lone pairs drop-down menu. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate resonance structures using the symbol from the drop-down menu. ->> 90-87 O + ? ChemDoodle >
1. Propose a synthetic route from the starting material to the product. Show each individual reaction step and all intermediate products. Assume acidic workups occur if needed. Starting Material Product a. b. Hint: Number the carbons in your starting material and your product. Starting Material Product a-an c. Hint: Pay attention to stereochemistry. Starting Material Product 4
5. Using curved arrows please give the mechanism of this reaction, including any regioselectivity or stereoselectivity. P. HBr } DCM Br
Add curved arrow(s) to draw step 2 of the mechanism. Modify the given drawing of the product as needed to show the intermediate that is formed in this step. H. C N. II P. H. Clo. CI Br HO. Ź + I +† + +1 ****
Complete each of the following statements below using the figure below. NaOH a. In the above reaction, [Select ] is the nucleophile. b. In the above reaction, [Select ] is the electrophile. C. In the above reaction, [Select ] is the leaving group. C. The above reaction should proceed via an [ Select ] mechanism.
Question 4 4. Draw the final major product(s) for each multistep synthesis reaction. H3O* OMe H3PO4 Jones EtzNH reagent H30* 1. O3 NABH3CN PBr3 KOC(CH3)3 -OH 2. DMS NH3, H3O* Br KOC(CH3)3 1. ВНз РСС H30* 2. HаОг, ОН CH2CI2

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