Preparation of methyl 3 nitrobenzoate lab report. Nitration of methyl benzoate lab report 2022-10-31

Preparation of methyl 3 nitrobenzoate lab report Rating: 6,9/10 1275 reviews

Rejecting a discount request can be a difficult task, especially if the person making the request is a valued customer or client. It's important to handle the situation with tact and professionalism to maintain a positive relationship. Here are some tips on how to reject a discount request:

  1. Acknowledge the request: Start by thanking the person for their business and for considering your company for their needs. This shows that you value their business and are grateful for the opportunity to work with them.

  2. Explain the reason for the rejection: Be honest and transparent about why you are unable to offer a discount. Some common reasons for rejecting a discount request might include already offering a competitive price, having a strict pricing policy, or not having the flexibility to lower prices due to overhead costs.

  3. Offer alternative solutions: If possible, consider offering alternative solutions that may meet the person's needs or budget. For example, you could offer a bundle deal or a free service or product as a way to add value to their purchase.

  4. Keep the lines of communication open: Even if you are unable to offer a discount, it's important to maintain a positive relationship with the person. Let them know that you appreciate their business and are always open to discussing potential future opportunities.

In summary, rejecting a discount request can be challenging, but it can be done in a professional and respectful manner. Acknowledge the request, explain the reason for the rejection, and consider offering alternative solutions. Above all, keep the lines of communication open to maintain a positive relationship with the person.

LAB 334

preparation of methyl 3 nitrobenzoate lab report

There are many factors that determine where the electrophile attacks and they include resonance and steric hindrance. After adding all of the acid mixture I removed the flask from the ice-salt bath and allowed it to warm to room temperature. Therefore, the ability to put substituents on a benzene ring, at specific positions relative to each other, is a very important factor in synthesizing many organic compounds. These two neighboring hydrogens are about equal in equivalency, and show up as peak C on the spectrum. The reason for this is that both carbomethoxy groups as well as the nitro group on the mono nitrated product are deactivating groups making the second nitration less favorable.

Next

Lab Report 11

preparation of methyl 3 nitrobenzoate lab report

Although this example is for chemistry, science based methods have some commonality across comparable science disciplines. Finally, proton NMR analysis was done on the final product, shown in figure 5. Because it is the most de-shielded, this indicates that it is between the two groups on the ring. However, it still requires some conversion. There is no doubt that nitration will only occur under those conditions. Although the ring was deactivated, over- nitration could have occurred if the mixture was heated.

Next

Preparation of Methyl Meta

preparation of methyl 3 nitrobenzoate lab report

This combination resulted in a clear yellow liquid. Note how the start of the sentence is clear about moving from one stage to the next. While water and methanol helped remove impurities from the product. However, substitution reactions occur and are relatively simple to carry out in the laboratory. Equation 2: Equation 2 shows the calculation for the actual yield, which is 4-4.


Next

Example method section for a chemistry laboratory report Preparation of Methyl 3

preparation of methyl 3 nitrobenzoate lab report

Methanol is a flammable liquid, and is toxic -- no flames will be allowed in lab, wear gloves while handling it, and avoid breathing its vapors. Prevent contact with the skin, eyes, and clothing; work in the hood. Electrophiles can either attack at the meta, ortho, or para position depending on which position provides the least steric hindrance and encourages stability. . The two main reaction types used for this are both substitutions: Electrophilic Aromatic Substitution EAS and Nucleophilic Aromatic Substitution NAS. Finally, proton NMR analysis was done on the final product, shown in figure 5. The para addition is shown in figure 4.

Next

Nitration of methyl benzoate lab report

preparation of methyl 3 nitrobenzoate lab report

Therefore, the ability to put substituents on a benzene ring, at specific positions relative to each other, is a very important factor in synthesizing many organic compounds. This can be done by reducing the nitro group into an amino group through the process of hydrogenation. Then the theoretical yield was calculated. EAS, on the other hand, is a very useful method for putting many different substituents on a benzene ring, even if there are other substituents already present. Often, to make the process of learning method writing easier, your tutor may give you the majority of this information in the 'materials and apparatus' section of a laboratory practical script. This is shown in equation 1. In this reaction, the nitronium ion can be added to three different locations on the benzene ring: meta, ortho, and para.

Next

Preparation of methyl

preparation of methyl 3 nitrobenzoate lab report

The precipitate was washed with 1 mL of water and 2 mL of methanol. In this reaction nitration at the meta position is favored because the partial positive charges that reside at the ortho and para positions repel the positively charged nitronium ion. This nitration took place via an electrophilic aromatic substitution and the electrophile was formed from mixing sulfuric and nitric acid. The product was collected using B├╝chnerfiltration, washed twice using 10 mL ice-cold methanol and dried in a drying ovenprior to weighing to calculate the yield. Figure 2: Figure 2 shows the mechanism for the formation of methyl m-nitrobenzoate from the reactants methyl benzoate and nitronium ion.

Next

Nitration Of Methyl

preparation of methyl 3 nitrobenzoate lab report

Inductive Effects of Alkyl Groups chem. Regarding the structure and flow of the writing, note how it provides just enough detail to allow another scientist to carry out thesame experiment. This figure also shows the structure of the molecule with hydrogen peaks labeled accordingly. These two neighboring hydrogens are about equal in equivalency, and show up as peak C on the spectrum. The melting point of methylm- nitrobenzoate is a range from 78.

Next

Pre

preparation of methyl 3 nitrobenzoate lab report

Equation 1: Equation 1 shows the two calculations to determine the limiting reagent. The second most shielded peak, peak B, was a triplet, located at 7 ppm. During SN1 reactions, however, nucleophiles attack an aliphatic carbon and weak Lewis bases serve as leaving groups. To explain this further, this example was actually written for inclusion in a Laboratory book often referred to as 'Lab book' , and was created from a combination of a student following the materials and apparatus section and their own observations from the experiment. Which would most likely be para and ortho products.

Next