Acetanilide is used instead of aniline in the synthesis of p-nitroaniline to control the selectivity of the reaction. Acetanilide is less reactive than aniline, making it easier to control the nitration process and avoid the formation of unwanted byproducts. Additionally, the acetanilide group can be easily removed after the nitration reaction to yield p-nitroaniline.
Actually it is possible to put a second acyl group on as well, for example with acetyl chloride and triethylamine. Under aqueous basic conditions the second acyl group is far more readily hydrolysed.
Photosynthesis is not considered a synthesis reaction because it involves the conversion of light energy into chemical energy, rather than the direct combination of two or more substances to form a new compound.
No, catabolism is driven by breakdown reactions where larger molecules are broken down into smaller units, releasing energy in the process. Conversely, anabolism is driven by synthesis reactions where smaller molecules are combined to form larger molecules, requiring energy input.
The presence of an amide group in the urea molecule indicates it is derived from amino acids rather than glucose. This amide group is formed from the reaction between ammonia and the carbonyl group of a carboxylic acid group, which is characteristic of amino acid synthesis.
Since Hassium is unstable, and has a very short half-life (10 seconds to 16.5 minutes), it is unlikely you will be able to purchase it in bulk. The cost would therefore be the cost of synthesis, and that would be dependent on your resources available to do nuclear fusion atomic synthesis. According to Wikipedia, somewhere on the order of 100 atoms have been synthesized.
Actually it is possible to put a second acyl group on as well, for example with acetyl chloride and triethylamine. Under aqueous basic conditions the second acyl group is far more readily hydrolysed.
It is essential to use a good quality protector on aniline style leathers as this will make this sort of problem much easier to deal with. Aniline style leathers are very absorbent and once stains have been absorbed by the leather they are often impossible to remove successfully. Treating leather with a protector (such as LTT Ultra Protect) will allow the saliva to sit on the surface rather than be soaked in and then it can be cleaned off. Lazy Leather is a unique aniline cleaner which is a non surfactant and will not be soaked up by the leather. It is a great maintenance product for aniline style leathers. source: http://www.LTTleathercare.co.uk
Metronidazole is an antimicrobial drug that interferes with DNA synthesis in microorganisms, particularly anaerobic bacteria and protozoa, rather than protein synthesis.
Endoplasmic reticulum (ER) plays a crucial role in the synthesis of proteins by providing a site for ribosomes to attach and synthesize proteins. The rough ER, with ribosomes attached to its surface, is involved in the synthesis of proteins that are destined for secretion or insertion into membranes. The smooth ER is involved in the synthesis of lipids and detoxification processes rather than protein synthesis.
Photosynthesis is not considered a synthesis reaction because it involves the conversion of light energy into chemical energy, rather than the direct combination of two or more substances to form a new compound.
Ribosomes are cellular structures responsible for protein synthesis. They do not store proteins but rather synthesize them using instructions from mRNA.
None of these cells are capable of protein synthesis. Erythrocytes (red blood cells) lack a nucleus and organelles, platelets are cell fragments derived from megakaryocytes, and neutrophils are a type of white blood cell primarily involved in immune response rather than protein synthesis.
Sulfanilamide has two groups on the benzene ring in para- positions to each other. The amino group is a highly activating ortho-directing group and the sulfonamide group is a meta-directing group. Consequently, the amino group must be introduced first followed by the introduction of the sulfonamide group. To introduce the sulfonamide group one must first use chlorosulfonic acid then ammonium hydroxide. Unfortunately, amino groups react with chlorosulfonic acid leading to undesired products and the direct chlorosulfonation of aniline would not lead to the desired intermediate product. However, if the amino group is converted to an amide, the undesired side reaction with chlorosulfonic acid is avoided. The acetyl group in this case serves as a "protecting group" for the amine that allows a smooth chlorosulfonation of the benzene ring. The amide nitrogen does not activate the ring towards substitution as much as the free amino group, but it can still exert its ortho/para- directing influence. In this case the steric hindrance provided by the acetyl group results in the substitution occurring predominantly at the para- substitution. The protecting acetyl group is removed later to give the desired "free" amino group. The protection of groups that would interfere with a given step in a synthesis is not uncommon, but I it is necessary for the "protecting group" to be introduced and removed readily by reactions that will not adversely affect other groups in the molecule. REFERENCE: http://www.uwf.edu/chemistry/faculty/Gurst/SULFANIL.pdf Sulfanilamide has two groups on the benzene ring in para- positions to each other. The amino group is a highly activating ortho-directing group and the sulfonamide group is a meta-directing group. Consequently, the amino group must be introduced first followed by the introduction of the sulfonamide group. To introduce the sulfonamide group one must first use chlorosulfonic acid then ammonium hydroxide. Unfortunately, amino groups react with chlorosulfonic acid leading to undesired products and the direct chlorosulfonation of aniline would not lead to the desired intermediate product. However, if the amino group is converted to an amide, the undesired side reaction with chlorosulfonic acid is avoided. The acetyl group in this case serves as a "protecting group" for the amine that allows a smooth chlorosulfonation of the benzene ring. The amide nitrogen does not activate the ring towards substitution as much as the free amino group, but it can still exert its ortho/para- directing influence. In this case the steric hindrance provided by the acetyl group results in the substitution occurring predominantly at the para- substitution. The protecting acetyl group is removed later to give the desired "free" amino group. The protection of groups that would interfere with a given step in a synthesis is not uncommon, but I it is necessary for the "protecting group" to be introduced and removed readily by reactions that will not adversely affect other groups in the molecule. REFERENCE: http://www.uwf.edu/chemistry/faculty/Gurst/SULFANIL.pdf Sulfanilamide has two groups on the benzene ring in para- positions to each other. The amino group is a highly activating ortho-directing group and the sulfonamide group is a meta-directing group. Consequently, the amino group must be introduced first followed by the introduction of the sulfonamide group. To introduce the sulfonamide group one must first use chlorosulfonic acid then ammonium hydroxide. Unfortunately, amino groups react with chlorosulfonic acid leading to undesired products and the direct chlorosulfonation of aniline would not lead to the desired intermediate product. However, if the amino group is converted to an amide, the undesired side reaction with chlorosulfonic acid is avoided. The acetyl group in this case serves as a "protecting group" for the amine that allows a smooth chlorosulfonation of the benzene ring. The amide nitrogen does not activate the ring towards substitution as much as the free amino group, but it can still exert its ortho/para- directing influence. In this case the steric hindrance provided by the acetyl group results in the substitution occurring predominantly at the para- substitution. The protecting acetyl group is removed later to give the desired "free" amino group. The protection of groups that would interfere with a given step in a synthesis is not uncommon, but I it is necessary for the "protecting group" to be introduced and removed readily by reactions that will not adversely affect other groups in the molecule. From: http://www.uwf.edu/chemistry/faculty/Gurst/SULFANIL.pdf
Protein synthesis is a complex biological process in which cells build proteins by reading the instructions encoded in DNA. While it involves many chemical reactions, it is more accurately described as a series of coordinated biochemical reactions rather than a single chemical process.
Yes, that is true. A substance that is created through chemical synthesis rather than being naturally occurring is called synthetic.
Heating of calcium carbonate (CaCO3) to produce calcium oxide (CaO) and carbon dioxide (CO2) is a decomposition reaction, not a synthesis reaction. This reaction involves breaking down a compound into simpler substances, rather than combining two or more substances to form a new compound.
The mitochondria is not directly involved in translation. It is responsible for generating energy in the form of ATP through cellular respiration, rather than for protein synthesis which is the role of translation.