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- H3C-O-SiH3 ether, which is similar to dimethyleters, was synthesized. This ether is known to be a weaker base than (CH3)3O. Discuss why and explaingive the major products and include stereochemistry when appropriatePredict the major products of the following substitutions. Please provide explanations.
- Following is the structure of miconazole, the active antifungal agent in a number of over-the-counter preparations, including Monistat, that are used to treat vaginal yeast infections. One of the compounds needed for the synthesis of miconazole is the trichloro derivative of toluene shown on its right. (a) Show how this derivative can be synthesized from toluene. (b) How many stereoisomers are possible for miconazole?Compound F may be synthesised by the method below Compound A Compound F HCI CH3OH H₂SO4 Compound B CH3 CH₂ CH₂ CI Compound E NaOH K₂Cr₂O7 H₂SO4 Compound C K₂Cr₂O7 H₂SO4 Compound D Draw the structural formulas of compounds A, C, D, E and F in the boxes provided above.Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry (d) dil HCl (e) ОН Conc H2SO4 heat (f) HBr
- As we will learn in Chapter 20, reaction of (CH3)2CO with LiC ≡ CH followed by H2O affords compound D, which has a molecular ion in its mass spectrum at 84 and prominent absorptions in its IR spectrum at 3600–3200, 3303, 2938, and 2120 cm. D shows the following 1H NMR spectral data: 1.53 (singlet, 6 H), 2.37 (singlet, 1 H), and 2.43 (singlet, 1 H) ppm. What is the structure of D?Chemistry 3. Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry. (а) NaOEt heat (b) heat (c) Br NaCN DMF (d) (e) OH H,SO,/H,PO, heat (f) HBr (g) 1) BH. THE 2) H,0, OH (h) 1) Hg(OAC), H-0 2) NaBH, (i) KMNO, NaOH ColdCompound A is first reacted with methylamine in the presence of acid and then treated with NaBH3CN. Using the spectroscopic data given, what is the structure of the product after step 1?