How to Balance PhCHO + SF4 Reaction

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In summary, there is a reaction between PhCHO and SF4, where PhCHO is likely benzaldehyde. The electrons that can participate in bonding are two lone pairs on oxygen, two electrons in a pi bond, and 6 pi electrons in resonance in the ring. These are the only electrons that can form a bond, but due to the reactivity of benzene pi bonds, it is unlikely that they will be involved. The positive carbon is stable due to the benzene ring and oxygen. The final compound should have a -ve charge on the sulphur and a +ve charge on the carbonyl carbon. This information should help determine the mechanism and consider the stability of the sulphur.
  • #1
orgmann
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Please post this type of questions in HW section using the template.
There is reaction between
PhCHO + SF4
I tried to make the mechanism but I stuck .
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  • #2
I'm not quite sure what PhCHO is, it seems as though it is benzaldehyde. If that's the case let's look at your electrons that can participate in bonding. You have two lone pairs on an oxygen, two electrons in a pi bond, and 6 pi electrons in resonance in your ring. These are the only electrons that will be able to form a bond and given the reactivity of benzene pi bonds, it's unlikely that they will be involved. Also think about you the stability. The positive carbon is fairly stable due to the benzene ring on one side and oxygen on the other.
 
  • #3
Your last compound is wrong. The sulphur shall have a -ve charge due to accumulation of another pair of electrons and the carbonyl carbon shall have +ve charge. That should help you get the mechanism. Post that, think about the stability of the sulphur and how it can become more stable.
 

1. How do I determine the appropriate amount of PhCHO and SF4 to use in the reaction?

The amount of PhCHO and SF4 needed for the reaction will depend on the specific goals and conditions of the experiment. It is important to carefully consider the stoichiometry of the reaction and the desired concentration of each reagent, as well as any potential side reactions or byproducts that may occur. Consult with a mentor or reference materials to determine the appropriate ratios and amounts for your specific reaction.

2. What solvent should be used for the PhCHO + SF4 reaction?

The choice of solvent for this reaction will depend on several factors, including the solubility of the reactants and the desired reaction conditions (e.g. temperature, pressure). Common solvents used in this type of reaction include dichloromethane, acetonitrile, and tetrahydrofuran. It is important to choose a solvent that will not interfere with the reaction or produce unwanted side products.

3. How can I ensure that the reaction produces the desired product?

The key to achieving the desired product in this reaction is careful control of the reaction conditions. This includes maintaining the appropriate temperature and concentration of reagents, as well as controlling the reaction time. Additionally, it may be helpful to monitor the reaction progress using techniques such as TLC or NMR. If the desired product is not obtained, it may be necessary to adjust the reaction conditions or try alternative reaction methods.

4. What safety precautions should I take when working with PhCHO and SF4?

Both PhCHO and SF4 can be hazardous chemicals, so it is important to take proper safety precautions when handling them. This includes wearing appropriate personal protective equipment, working in a well-ventilated area, and following proper handling and disposal procedures. It is also important to consult safety data sheets and follow any additional safety guidelines provided by your institution or regulatory agencies.

5. Can this reaction be scaled up for larger quantities?

The PhCHO + SF4 reaction can typically be scaled up for larger quantities with careful consideration of the reaction conditions and safety precautions. It is important to consult with a mentor or reference materials to ensure that the appropriate adjustments are made for larger-scale reactions. Additionally, it may be beneficial to perform a small-scale test reaction before scaling up to identify any potential issues or challenges that may arise.

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