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![3.
Propose a retrosynthetic analysis for the following target molecules and the
corresponding forward syntheses.
TM-1
TM-3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ee67c44-0754-41fd-9006-bdc882dbaccb%2F7514f42b-c518-4ef4-8189-1e8f40206dc5%2Fshg1tje.jpeg&w=3840&q=75)
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- Based on this retrosynthetic analysis, propose a synthesis of the anticoagulant (a substance that inhibits blood clotting) diphenadione. OEt OEt Diphenadione Diethyl phthalate Because of its anticoagulant activity for blood, this compound is used as a rodenticide.Atenolol is a beta blocker medication primarily used to treat high blood pressure and heart- associated chest pain. Other uses include the prevention of migraines and treatment of certain irregular heart beats It is taken by mouth or by injection into a vein. It can also be used with other blood pressure medications. OH .N. CH3 ČH3 H2N° suggest industrial synthetic approach towards synthesis of this drug (atenolol) and provide reasons and advantages of your proposed synthetic approach.NOC XT Ph CH₂ Both primary and secondary amines add to a ß-unsaturated aldehydes and ketones to yield ß-amino aldehydes and ketones rather than the alternative imines. Under typical reaction conditions, both direct and conjugate modes of addition occur rapidly. But because the reactions are reversible, they generally proceed with thermodynamic control rather than kinetic control so the more stable conjugate addition product is often obtained to the complete exclusion of the less stable direct addition product. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions H H CH3NH₂ CH3 H-A :A Ph NHCH3 вон CH3 :A H-A 8b
- Suggest a retrosynthetic analysis of target molecule T, and provide a forward synthesis from the starting materials provided, giving suitable reagents. Rationalise your choice of disconnections, reagents and any selectivity. Reaction mechanisms are not required. Me₂N7 O. Ph Me Ph T from: PhCHO Me,NH PhLiA compound (C3H,NO) gives the following NMR data. In the box below please draw the structure of the compound. 'H-NMR: 2.06 ppm, s(3H); 7.01 ppm, t(1H); 7.30 ppm, m(2H); 7.59 ppm, d(2H); 9.90 ppm, s(1H) 13C-NMR: 168.14; 139.24; 128.511; 122.834; 118.90; 23.93 • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. Do not include lone pairs in your answer. They will not be considered in the grading.Propose a synthesis of the topical anesthetic cyclomethycaine from 4-hydroxybenzoic acid, 2-methylpiperidine, and any other necessary reagents. HN' + HO. НО Cyclomethycaine 4-Hydroxybenzoic acid 2-Methylpiperidine
- Devise a synthesis for the following. Show intermediates for each svnthetic step.Following is a synthesis for toremifene, a nonsteroidal estrogen antagonist whose structure is closely related to that of tamoxifen. (a) This synthesis makes use of two blocking groups, the benzyl (Bn) group and the tetrahydropyranyl (THP) group. Draw a structural formula of each group and describe the experimental conditions under which it is attached and removed. (b) Discuss the chemical logic behind the use of each blocking group in this synthesis. (c) Propose a mechanism for the conversion of D to E. (d) Propose a mechanism for the conversion of F to toremifene. (e) Is toremifene chiral? If so, which of the possible stereoisomers are formed in this synthesis?propose a retrosynthetic analysis for the following molecules CI H3Ç Но 4-chloro-6-methoxyquinazolin-7-ol .cOOMe Но methyl 4-hydroxy-3-methoxybenzoate
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