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- PPh3, DIAD CH20H (A) THF mitsunobu H2N sreaction NH2 excess AGOH () (Ci3H20 INS) me I N-me mea H2O H2SO4 2 Br2 (4) (5)HC CH CH3CO2H H,SO, H3C-C-O-C=CH2 H HgSO, Acetylene Acetic Acid Vinyl acetate Acetylene reacts with acetic acid in the presence of H,SO4 and HgSO4 to yield vinyl acetate, a monomer used in the production of poly(vinyl acetate). The reaction mechanism includes the following steps: 1. Formation of a bridged mercurinium ion intermediate between Hg- and acetylene; 2. Addition of acetic acid to open the three-membered ring; 3. Proton transfer to solvent to give an organomercury vinyl ester3; 4. Addition of H to the alkene to form a carbocation; 2+ 5. Expulsion of Hg²+ to form the alkene. Diagram the mechanism on a separate sheet of paper, and then draw the structure of the product(s) of step 3. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Draw organic species only. • Do not include counter-ions, e.g., Na, I, in your answer.
- B:- Give the IUPAC name for each of the following polymers? 1- H(-O-C CO-C6H5CO-) OH 3- HO(-CHşNCH\ NH\ I 5- (-(NC)-CH CH- (C₂H5)-)n 2- (-O-CH, CH, CH, CH2-)n 4- (-CH₂ CH-(COOH)-)n(f) -C=C-CH3 H₂, NiDraw the mechanism for the following reaction: Et - OH x+a CH3 CH₂ Et Edit the reaction by drawing all steps in the appropriate boxes and connecting them with reaction arrows. Add charges where needed. Electron-flow arrows should start on the electron(s) of an atom or a bond and should end on an atom, bond, or location where a new bond should be created.
- Are all of these reachicns regioselective and how do you Aind it ? 1) 1,3 dimethylcycloher-1-enc reacts with H2, Ni 2) 3,4-dimethy Ipent-1-eme reacts with H30+ 3) (E)-6,6-dımetnylhept-3-ene reacts with CH3OH, H* 4) 1,3-dımethylcyclohex-1-ene reacts with HClQuestion 29 Complete the statement below by predicting the major product Use the pool of possible compounds provided in the table. Write the letter exactly as it appears in the table. Do not switch le numbers. The reaction (e) below leads to the following major product Write the letter in UPPERCASE corresponding to the structure (in the table provided) that is the best possible match for the pre product. (e) HBr ROOR TABLE OF POSSIBLE PRODUCTSBr LiCu(CH3)2 6 (1) LiAlH4 2 3 Ahol follow (2) H₂O 0 Aci HBr (xs) H (2) H₂O+ -Li