(g) Once your group has agreed on the above mechanism, predict the reagents needed to make the acetals circled in question #9d above. نا HO OH HO DEX M

Q: 1) PhN=C=S; 2) HF CF3CO2H HF 1) DCC; 2) HF NaOH, H2O 1) DCC; 2) CF3CO2H 1) DCC; 2) NaOH PhN=C=S DCC

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Q: None

A: Step 1: Step 2: Step 3: Step 4:

Q: Identify the starting material needed to make each of the following acetals а) b) c) OEt

A: To identify the starting material for making acetals

Q: 5) Which sequence of reagents can be used to do the following transformation? CH2OH 2) HBr 3)…

A: NaBH4 can reduce aldehyde and ketone to alcohols. Alcohols can react with HBr to give alkyl bromide.…

Q: Which is the strongest nucleophile in a polar aprotic solvent, such as acetone? O CH3ONa O CF3ONa O…

A: Nucleophile, is an atom or molecule that in chemical reaction seeks a positive centre, such as the…

Q: HBr, A O Br. O Br. IIIII

A: Given a reaction to heat and to draw its mechanism.Here a highly stable Benzylic carbcation forms…

Q: Draw the missing organic structures in this short synthetic sequence. Assume an appropriate workup…

A:

Q: 3.) The strategy for the synthesis shown below uses an acetal as a protecting group. a. Fill in the…

A: question 1 To explain the regioselective reduction of ketone in presence of aldehyde. question 2 to…

Q: 1) Which starting aldehyde would you use to prepare the aldehyde shown below? Please indicate the…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: 7. Show the reagents and reaction sequence needed to do the following transformation. ? O OH

A: We have to write the reagents required for the above transformation.

Q: 2. What reagent would you use for the following transformation? ? OH

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Q: 19) Which of the following conditions will result in the selective single alpha-chlorination of the…

A: Halogenation under acidic condition leads to monohalogenation

Q: Draw

A: 1- OH-(aq) / H2O  2- PCC  3- LDA, THF, -78°C  4- a) 2Li then b) CuBr  5- Grignard reagent  6-…

Q: Acetal product formation is difficult, since hemiacetals are stable while acetals are not stable.…

A: In this question, we will see this given statement in the Question is true or false.  We will…

Q: 8. A Without changing reagent concentrations or amounts, what change could one make to the reaction…

A:

Q: Draw the major product of this elimination. Consider regiochemistry and stereochemistry. Ignore…

A: Given that, the reaction is:

Q: Can you help propose a sy

A: 1. Cyclohexane is converted in to cyclo-1,3-hexadiene :  cyclohexane upon treated with chlorine…

Q: Draw the structure of all products of the mechanism below. H₂ H₂C H H₂C CH3 :I: Click and drag to…

A: Given that, the reaction is:

Q: Which alkyl halide reacts the fastest in an E2 reaction? O 2-chloro-2-methylbutane O…

A:

Q: Draw the hemiacetal and acetal that form in the following reaction. Do not show stereochemistry. S…

A: The objective of the question is to predict the Acetal and Hemiacetal formed in the following…

Q: 2. Draw the stepwise mechanism of the following reaction. OH -CH3 H₂SO4 -CH₂ -CH₂ CH₂

A: Given a cyclopentanol and reagegent H2SO4 . Draw the stepwise mechanism.

Q: 2. The following transformations represent either a reversible or irreversible reaction with a…

A: Some reaction are equilibrium in nature they are stable by extra stability factors like medium of…

Q: Complete the Reaction below by providing both major and minor products, circle the major product.…

A: Given reaction is :  Complete the reaction and provides the major and minor products ?  The given…

Q: 4. Grignard Analysis. The alcohol below was synthesized via a Grignard reaction. There are three…

A: Grignard reagent can be used to make alcohol using carbonyl compound. Same alcohol can be made by…

Q: Which of the sets of reagents below could make the alcohol shown below? ? Partial credit is…

A:

Q: 4. Synthesize targets from starting materials and reagents that deliver no more than 2 carbons. b)…

A: The given reactions are shown below.

Q: The following reaction proceeds by two consecutive E2 eliminations. KOH, 170 °C CICH:- ethylene…

A: First, the given compound goes elimination to give an alkene which further undergoes elimination to…

Q: میں Br when the given compound is treated with a base.

A: In the given compound we are being asked to form the E2 product. E2 Reaction generally occur with…

Q: Select the best reagents to affect the transformation below. ?

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Q: 2. Which compound would work out to form a Grignard reagent. Circle the portion of the molecule that…

A: The question is based on the concept of organic reactions.   we have to identify the compound in…

Q: A) CH3 Br B) CH₂Br C) Br CH3

A: Order of reactivity of alkyl halide in E2 elimination is: 3° > 2° > 1°

Q: Provide a complete mechanism, with curved arrows, for the following reaction + H₂O+ + + NH2

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: What is the best choice of reagent(s) to perform the following transformation?

A: In this question stereo chemistry have not mentioned to the given product. so it should be Br2 CCl4

Q: 4. Supply the missing reagents/conditions to make the following transformations. но OTf CN

A: In the first step the OH is basically replaced by OTf. OTf is basically the triflate functional…

Q: Reaction 1: The Grignard reagent attacks a carbonyl compound to form an alkoxide salt. R R' 8+ -MgX…

A: Right way of attacking of griganard reagent.

Q: Provide a mechanism for the following transformation, clearly illustrating each step with curved…

A: Given is organic reaction.In given reaction cyclic ether is converted into diene.

Q: 6. a) Draw the structure of the final product for the reaction mechanism between a Grignard reagent…

A: Grignard reagent attack on carbonyl group to give alcohol upon work up.

Q: Provide the reagent(s) necessary for each of the following transformations. .CI H. HO

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Q: NH2 но. CF3 CF3 IZ

A: The fate of the given reaction is decided by the chemical nature of the leaving group and its…

Q: Show all the reactions stepwise to achieve the following transformation. Also clearly write down the…

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