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Fofino [41]
3 years ago
9

Draw the major organic product for the reaction of 1-phenylpropan-1-one with the provided phosphonium ylide in part 1. In part 2

answer the question about the transformation.

Chemistry
2 answers:
ipn [44]3 years ago
5 0

Answer:

The major product formed is a benzyl allyl compound, namely 2-methylene propylbenzene

Explanation:

<u>Part 1.</u>

The product formed from this Wittig reaction with phosphonium ylide is a phenylallyl compound, 2-methylene propylbenzene. Structure and reaction synthesis is attached in file.

<u>Part 2</u>

The types of transformation involved are:

  • alkylation (as there is a transfer of alkyl group)
  • addition (reaction of ylide)

Ilia_Sergeevich [38]3 years ago
4 0

Answer:

2-methylene propylbenzene (major product)

Explanation:

This reaction yields olefins and organophosphorus compound and is also known as wittig olefination. The reactants fits the category of a ketone (1-phenylpropan-1-one) and a Wittig reagent (phosphonium ylide).

Part 1: Answer in the fig. Below.

1-phenylpropan-1-one + phosphonium ylide ➡ phenylallyl compound + 2-methylene propylbenzene (major product)

Part 2.

Classical mechanisms that happened during its transformation are thus;

• nucleophilic addition

• Elimination

• cycloaddition

• [2+2]/retro-[2+2] mechanism.

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Suppose you start with a solution of red dye #40 that is 3.1 ✕ 10−5 M. If you do four successive volumetric dilutions pipetting
Vanyuwa [196]

Answer:

1.3 × 10⁻¹¹ M

Explanation:

We are going to do 4 successive dilutions. In each dilution, we will apply the dilution rule.

C₁.V₁=C₂.V₂

where,

C₁ and V₁ are concentration and volume of the initial state

C₂ and V₂ are concentration and volume of the final state

<u>First dilution</u>

C₁ = 3.1 × 10⁻⁵ M V₁ = 1.00 mL C₂ = ? V₂ = 40.00mL

C_{2}=\frac{C_{1}.V_{1}}{V_{2}} =\frac{3.1\times 10^{-5}M \times 1.00mL }{40.00mL} =7.8 \times 10^{-7}M

<u>Second dilution</u>

C₁ = 7.8 × 10⁻⁷ M V₁ = 1.00 mL C₂ = ? V₂ = 40.00mL

C_{2}=\frac{C_{1}.V_{1}}{V_{2}} =\frac{7.8 \times 10^{-7}M \times 1.00mL }{40.00mL} =2.0 \times 10^{-8}M

<u>Third dilution</u>

C₁ = 2.0 × 10⁻⁸ M V₁ = 1.00 mL C₂ = ? V₂ = 40.00mL

C_{2}=\frac{C_{1}.V_{1}}{V_{2}} =\frac{2.0 \times 10^{-8}M \times 1.00mL }{40.00mL} =5.0 \times 10^{-10}M

<u>Fourth dilution</u>

C₁ = 5.0 × 10⁻¹⁰ M V₁ = 1.00 mL C₂ = ? V₂ = 40.00mL

C_{2}=\frac{C_{1}.V_{1}}{V_{2}} =\frac{5.0 \times 10^{-10}M \times 1.00mL }{40.00mL} =1.3 \times 10^{-11}M

4 0
3 years ago
Explain why copper has a high thermal conductivity.
Katarina [22]

Explanation:

So copper is a lattice of positive copper ions with free electrons moving between them. 

7 0
2 years ago
which atoms attains a stable valence electron configuration by bonding with another atom 1) neon 2) radon 3) helium 4) hyrdogen
Sergeu [11.5K]
Well, when an atom attains a stable valence electron, it means that the outer electrons are complete and so cannot attain any more electrons. For the first shell, it is complete when it has 2 electrons, the second shell is complete when it has 8 electrons, all the other shells also have a particular number when complete. Anyway, i believe the answer is HYDROGEN because when HYDROGEN combines with another atom of HYDROGEN, the outer shell is completed. This is because HYDROGEN has only 1 electron. If the two HYDROGENS, which both have 1 electron combine, they make the electrons 2, which is complete for the first shell, HYDROGEN ends in the first shell. Since the electrons become 2, the shell is at stable valence. In all the other options, this happens;
NEON- It has 10 electrons, 2 in the first shell and 8 in the second. So the the shells are already complete, so it can't bond with any thing, which is completely against the question.
RADON- Radon has 86 electrons.
HELIUM- Helium has 2 electrons, so the shell is already full, and cannot bond, so it goes against the question. The question says BY BONDING.
 So the answer is definitely 4) HYDROGEN
Hope i helped. Have a nice day, by the way, i'm very sure it's hydrogen.

3 0
3 years ago
When most liquids freeze, explain what happens to the motion and the space between the atoms.
KiRa [710]

Answer:

atoms relative motion slow down and begin to vibrate in place

8 0
3 years ago
Which of these is an example of a prosthesis?
GREYUIT [131]

Answer:

hearing aid

Explanation:

an artificial body part

6 0
3 years ago
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