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- Show how the amino acid alanine can be synthesized from propanoic acid. a. Show how the amino acid glycine can be synthesized from phthalimide and diethyl 2-bromomalonateThe following three derivatives of succinimide are anticonvulsants and have found use in the treatment of epilepsy, particularly petit mal seizures. Ph. Ph `N' ČH3 ČH3 Methsuximide Ethosuximide Phensuximide Following is a synthesis of phensuximide. CN Ph CN Ph CN NaOEt KCN 1. NaOH, H2O Ph-CHO 2. HС, Н20 COOET H cOOEt NC COOEt 3. Нeat Ethyl cyanoacetate (A) (B) Benzaldehyde Ph. Ph Ph CH3NH2 НООС СООН EtOOC COOET `N' (C) (D) ČH3 Phensuximide In the conversion of (B) to (C), draw the structure of the product of step 1.1 2 3 4 5 6 Cr₂03 Base RX 1 20 KNO3 H₂SO4 4 5- Isatoic Nitroisatin anhydride carbonyl O N- Alkyl isatin compound HCI/Zn 2 3 quinoline 4- carboxyl acid
- Macmillan Le Determine the product of the amidation reaction. an.y. OH catalyst Select Draw Templates More ///// H C N P O Era Q2 Qb. Synthesis of imines 1) H+ 2) H2NCH2CH2CH2CH3 3) Н2О ->O C. H3C-N-CH, Which of the following is an intermediate in the mechanism for amide synthesis through acylation of an amine? H3C-NH2 H3C CH H3C 單選: HO CI O a. CH, H H 00 CI O b. Hac- N-CH но, CI H. CI 00 O d. H3C CH3 H H
- The following three derivatives of succinimide are anticonvulsants and have found use in the treatment of epilepsy, particularly petit mal seizures. Ph Ph `N' `N' ČH3 ČH3 Methsuximide Ethosuximide Phensuximide Following is a synthesis of phensuximide. CN Ph CN Ph CN 1. NaOH, H2O 2. HC, Н20 NaOEt KCN Ph-CHO cOOEt H cOOEt NC COOEt 3. Нeat Ethyl cyanoacetate (A) (B) Benzaldehyde Ph Ph Ph CH;NH2 НООС СООН Et0oC COOEt `N' (C) (D) ČH3 Phensuximide Methsuximide is formed by a similar pathway to that shown for phensuximide. Draw the structure of the compound that reacts with ethyl cyanoacetate in the synthesis of methsuximide.following reactions. a. HO b. HO OH OH NH₂ NH₂ H₂SO4 H₂O + 1. LIAIH4 2. H* workup Imine Formation trace acid2. Will the following reaction occur as written? HO, NH H2N cat. H2SO4 A) Yes, after initial protonation of the carbonyl oxygen, ethanol is added to open the lactam. B) No, the lactam would dimerize under these conditions. C) Yes, cyclic amides can easily be converted to esters due to the ring strain. D) No, ring opening of the lactam does not occur since the protonation of the nitrogen occurs more readily than protonation of the carbonyl oxygen.
- Explain how to synthesis glimepirideol de C 3. Caffeine is an alkaloid, meaning alkali- or base-like. Circle functional groups in the molecule which would make react as a base. CH3 CH3 a. O b. O 4. Write the equations that account for what happens in the hydrolysis of acetamide O || (CH₂C-NH₂) in (a) acid and in (b) base. woled mode) N I T CH3 H Caffeine custom page 1141. Amides are comparably unreactive to nucleophilic acyl substitution, yet the B-lactam antibiotics shown) are reactive with a hydroxyl group side chain of an amino acid. Why? R HO