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.) Make the Amino Acid Aspartie Aerd ton Malowie Ester starting matemala 2) Make Isoleucine starting...
1. Consider the synthesis of the following amino acids: a) write all the steps for the synthesis of valine starting with propane, using the HVZ reaction to make a bromo-acid, which is subsequently laminates. b)Write all the steps for the synthesis of leucine starting with isobutane and using the Gabriel-Malonic Ester reaction. Also, consider: I)how would the L-enantiomer of the amino acid be isolated from the racemic mixture resulting from the above reactions. ii) what would the mechanism be for...
b: Before neutralization the solution (is
acidic/is basic) and the (protonated amino group/deprotonated amino
group/protonated ester group) makes benzocaine soluble in the
aqueous solution. When the sodium carbonate is added, the (amino
group is deprotonated/amino group is protonated/ester group is
deprotonated) and the neutral benzocaine produced has a (low
solubility in water/high solubility in water/higher density than
water).
The local anesthetic, benzocaine, can be prepared by the direct esterification of p-aminobenzoic acid with ethanol, using sulfuric acid as the catalyst....
C. The side chains of a chain Isoleucine 2 and ß chain Leucine 11 interact in the folded form. What type of noncovalent interaction is likely to occur? D. If Isoleucine 2 was replaced with a bulkier amino acid such as phenylalanine, predict the effect on the structure of insulin. Revise your sketch from Question 2 if phenylalanine was in this position.
2. The structure of the solid phase Wang resin linker and the first amino acid that we will use in this lab is shown below Fmoc first amino acid linker a) (1 pt) If the resin has 0.72 mmol/g of this linker on the surface of the beads, and you use 300 mg of resin for the reaction, how many mmol of linker do you have? b) (3 pts) All peptides will use alanine at the C-tenminus (position 1), Fmoc-L-valine...
Draw the Newman projection in staggered
conformation for isoleucine by viewing the molecule along the
C?2??C?3 bond.
The perspective formula of isoleucine, an amino acid, is provided below. Draw the Newman projection in staggered conformation for isoleucine by viewing the molecule along the C-2-C-3 bond. Edit the Newman projection on the canvas. Replace the appropriate hydrogens with the appropriate -CH_3 or other groups. If you need to start over, Undo or choose a Newman projection from the Templates toolbar (bottom)....
b. acid chloride c. ester For each of the terms on the left, provide the best match from the choices on the right. (each choice is only used once). (2@) 1. hydrazone 2. NaBH4 3. lithium dialkylcuprate 4. Haloform reaction 5. hydrazone 6. Li[(t-Bu0)AIH] 7. Trans-esterification 8. Silyl ether 9. Concerted Reaction 10. BH; 11. Arenium ion 12. acetal 13. Wolff-Kishner 14. Acyl substitution 15. DIBAL-H 16. Sandmeyer Reaction 17. Diazotization 18. Wittig Reaction 19. Claisen Condensation __20. Baeyer-Villiger A....
What amino acid would result from carrying out the following
synthetic sequence? Make sure the amino acid has the appropriate
charges expected after aqueous workup.
Chat amino acid would result from carrying out the following synthetic seguence? Make sure the amino acid has the appropriate charges expected after aqueous workup. 1. NaO EtOH 2. Br(CH2)4NHCOCH3 3. H*, H20, A
Which of the statements about peptide bonds are true? D A tripeptide contains three amino acid residues. Peptide bonds are ester linkages. Peptide bond formation is a hydrolysis reaction. O Peptides are polymers of amino acids. Peptide bonds form from nucleophilic attack by an a-carboxyl carbon atom on an electron pair of an a-amino nitrogen atom of another amino acid.
a cari b. acid chloride c. ester For each of the terms on the left, provide the best match from the choices on the right. (each choice is only used once). (2@) 1. hydrazone 2. NaBH 3. lithium dialkylcuprate 4. Haloform reaction 5. hydrazone 6. Li[(-Bu0);AIH] 7. Trans-esterification 8. Silyl ether 9. Concerted Reaction 10. BH; 11. Arenium ion 12. acetal 13. Wolff-Kishner 14. Acyl substitution 15. DIBAL-H __16. Sandmeyer Reaction _17. Diazotization _18. Wittig Reaction 19. Claisen Condensation 20....
starting with any alcohol use a reaction diagram to show how to make a 1.alkane 2. alkene 3.ester 4.ether